Juan Sierra
Chicago Cubs (ML)
Juan Sierra
Nickname:
Big Kahuna
Birthdate:
Sept. 29, 2003 (35 y, 11 m, 3 d)
Born In:
Petare, MIR, VEN
Nationality:
Venezuelan
Position:
C
Bats/Throws:
L/R
Height/Weight:
6'0"/196
Entry:
Unknown
Contract:
$120M / 4 years (2037-2040)
ML Service Time:
14 years, 20 days
OSA Rating History
Loading Chart...
Ratings Changes
2039-09-01
Contact Potential decreased from 50 to 45
Contact decreased from 50 to 45
Contact vs R decreased from 55 to 50
Gap Potential decreased from 50 to 40
Gap decreased from 50 to 40
Gap vs R decreased from 50 to 45
Gap vs L decreased from 35 to 30
Power vs L decreased from 30 to 25
Avoid Ks vs R decreased from 65 to 60
Avoid Ks vs L decreased from 55 to 50
Catcher Ability decreased from 70 to 65
C defense decreased from 65 to 60
2039-08-22
Weight decreased from 197 to 196
2039-06-06
Avoid Ks Potential decreased from 65 to 60
Avoid Ks decreased from 65 to 60
2039-05-30
Eye Potential increased from 45 to 50
Eye increased from 45 to 50
Avoid Ks Potential increased from 60 to 65
Avoid Ks increased from 60 to 65
2039-05-26
Contact Potential decreased from 55 to 50
Contact decreased from 55 to 50
Contact vs R decreased from 60 to 55
Eye Potential decreased from 50 to 45
Eye decreased from 50 to 45
Eye vs R decreased from 55 to 50
Avoid Ks Potential decreased from 75 to 60
Avoid Ks decreased from 75 to 60
Avoid Ks vs R decreased from 80 to 65
Avoid Ks vs L decreased from 65 to 55
C defense decreased from 70 to 65
2039-04-11
Weight decreased from 198 to 197
2039-04-04
Gap Potential increased from 45 to 50
Gap increased from 45 to 50
2039-03-14
Gap Potential decreased from 50 to 45
Gap decreased from 50 to 45
2039-02-28
Gap Potential decreased from 55 to 50
Gap decreased from 55 to 50
Gap vs R decreased from 60 to 50
Gap vs L decreased from 40 to 35
Power vs R decreased from 35 to 30
2039-02-12
Power Potential decreased from 35 to 30
Power decreased from 35 to 30
2039-01-02
Power Potential increased from 30 to 35
Power increased from 30 to 35
2038-11-23
Weight decreased from 199 to 198
2038-10-30
Avoid Ks vs R increased from 75 to 80
2038-09-06
Power Potential decreased from 35 to 30
Power decreased from 35 to 30
2038-09-02
Power Potential increased from 30 to 35
Power increased from 30 to 35
2038-08-30
Power Potential decreased from 35 to 30
Power decreased from 35 to 30
2038-08-12
Power Potential increased from 30 to 35
Power increased from 30 to 35
2038-07-08
Contact Potential decreased from 60 to 55
Contact decreased from 60 to 55
2038-07-05
Contact vs R decreased from 65 to 60
2038-06-17
Avoid Ks vs R decreased from 80 to 75
2038-06-14
Avoid Ks vs R increased from 75 to 80
2038-06-10
Avoid Ks vs R decreased from 80 to 75
2038-05-17
Avoid Ks vs R increased from 75 to 80
2038-05-13
Avoid Ks vs R decreased from 80 to 75
2038-05-03
Avoid Ks vs R increased from 75 to 80
Weight increased from 198 to 199
2038-04-19
Gap Potential decreased from 60 to 55
Gap decreased from 60 to 55
Gap vs R decreased from 65 to 60
Power vs R increased from 30 to 35
Bunt for Hit decreased from 30 to 25
2038-04-12
Avoid Ks vs R decreased from 80 to 75
2038-04-08
Gap Potential increased from 55 to 60
Gap increased from 55 to 60
Power vs R decreased from 35 to 30
Avoid Ks vs R increased from 75 to 80
2038-04-05
Gap Potential decreased from 60 to 55
Gap decreased from 60 to 55
Weight decreased from 199 to 198
2038-03-15
Weight decreased from 200 to 199
2038-03-01
Weight decreased from 201 to 200
2038-02-13
Weight decreased from 202 to 201
2037-12-13
Power vs R increased from 30 to 35
2037-11-29
Power vs R decreased from 35 to 30
2037-11-20
Weight increased from 201 to 202
2037-11-13
Avoid Ks vs R decreased from 80 to 75
2037-11-06
Power vs R increased from 30 to 35
Avoid Ks vs R increased from 75 to 80
2037-10-27
Speed increased from 45 to 50
2037-10-09
Power vs R decreased from 35 to 30
2037-10-06
Weight increased from 200 to 201
2037-09-03
Avoid Ks vs R decreased from 80 to 75
2037-08-31
Avoid Ks vs R increased from 75 to 80
2037-08-03
Avoid Ks vs R decreased from 80 to 75
Outfield Arm decreased from 30 to 25
2037-07-23
Contact vs L decreased from 50 to 45
2037-07-20
Contact vs L increased from 45 to 50
2037-07-16
Contact vs L decreased from 50 to 45
2037-07-09
Power vs R increased from 30 to 35
2037-07-02
Power vs R decreased from 35 to 30
2037-06-29
Power vs R increased from 30 to 35
Weight increased from 199 to 200
2037-06-25
Power vs R decreased from 35 to 30
2037-05-04
Contact vs L increased from 45 to 50
2037-04-30
Contact vs L decreased from 50 to 45
2037-04-20
Gap vs L decreased from 45 to 40
Power vs R increased from 30 to 35
Eye vs R increased from 50 to 55
Avoid Ks vs R increased from 75 to 80
Bunt for Hit increased from 25 to 30
Catcher Arm decreased from 60 to 55
2037-04-06
Gap vs L increased from 40 to 45
2037-03-30
Gap vs L decreased from 45 to 40
Power vs R decreased from 35 to 30
Avoid Ks vs R decreased from 80 to 75
2037-03-16
Power vs R increased from 30 to 35
2037-03-02
Avoid Ks vs R increased from 75 to 80
2037-02-10
Power vs R decreased from 35 to 30
Weight decreased from 200 to 199
2037-01-27
Weight decreased from 201 to 200
2037-01-06
Power vs R increased from 30 to 35
2036-12-30
Power vs R decreased from 35 to 30
2036-12-02
Avoid Ks vs R decreased from 80 to 75
2036-11-09
Power vs R increased from 30 to 35
Avoid Ks vs R increased from 75 to 80
Weight decreased from 202 to 201
2036-10-08
Weight increased from 201 to 202
2036-10-02
Power vs R decreased from 35 to 30
2036-09-29
Weight decreased from 202 to 201
2036-09-22
Weight increased from 201 to 202
2036-09-11
Contact vs L increased from 45 to 50
Outfield Range decreased from 45 to 40
2036-07-31
Power Potential decreased from 35 to 30
Power decreased from 35 to 30
2036-07-24
Power Potential increased from 30 to 35
Power increased from 30 to 35
2036-07-21
Power Potential decreased from 35 to 30
Power decreased from 35 to 30
2036-07-10
Weight increased from 200 to 201
2036-07-03
Power Potential increased from 30 to 35
Power increased from 30 to 35
2036-06-23
Contact Potential increased from 55 to 60
Contact increased from 55 to 60
Contact vs R increased from 60 to 65
Power Potential decreased from 35 to 30
Power decreased from 35 to 30
Infield Arm decreased from 30 to 25
2036-06-19
Power Potential increased from 30 to 35
Power increased from 30 to 35
2036-06-16
Eye vs L increased from 35 to 40
2036-04-28
Power vs R increased from 30 to 35
2036-04-24
Power vs R decreased from 35 to 30
2036-04-14
Power vs R increased from 30 to 35
2036-04-10
Contact Potential decreased from 60 to 55
Contact decreased from 60 to 55
Power vs R decreased from 35 to 30
2036-04-07
Contact Potential increased from 55 to 60
Contact increased from 55 to 60
2036-03-31
Contact Potential decreased from 60 to 55
Contact decreased from 60 to 55
Contact vs R decreased from 65 to 60
Gap vs L increased from 40 to 45
Power vs R increased from 30 to 35
Eye vs L decreased from 40 to 35
Control Potential increased from 20 to 25
Control increased from 20 to 25
Control vs R increased from 20 to 25
Control vs L increased from 20 to 25
2036-02-17
Avoid Ks Potential increased from 70 to 75
Avoid Ks increased from 70 to 75
2036-01-25
Stealing decreased from 40 to 35
2036-01-04
Avoid Ks Potential decreased from 75 to 70
Avoid Ks decreased from 75 to 70
2036-01-01
Avoid Ks Potential increased from 70 to 75
Avoid Ks increased from 70 to 75
Bunt for Hit decreased from 30 to 25
Speed decreased from 50 to 45
Infield Error decreased from 30 to 25
Control Potential decreased from 25 to 20
Control decreased from 25 to 20
Control vs R decreased from 25 to 20
Control vs L decreased from 25 to 20
Weight decreased from 201 to 200
2035-07-01
Eye vs L increased from 35 to 40
Avoid Ks Potential decreased from 75 to 70
Avoid Ks decreased from 75 to 70
Bunt for Hit increased from 25 to 30
Stealing increased from 35 to 40
2035-01-01
Contact Potential decreased from 65 to 60
Contact decreased from 65 to 60
Contact vs R decreased from 70 to 65
Contact vs L decreased from 50 to 45
Gap vs L decreased from 45 to 40
Power Potential increased from 25 to 30
Power increased from 25 to 30
Power vs R increased from 25 to 30
Power vs L increased from 25 to 30
Eye Potential increased from 45 to 50
Eye increased from 45 to 50
Avoid Ks Potential increased from 70 to 75
Avoid Ks increased from 70 to 75
Bunt for Hit decreased from 35 to 25
Infield Arm increased from 25 to 30
Outfield Error decreased from 40 to 35
Catcher Arm increased from 55 to 60
Movement Potential decreased from 25 to 20
Movement decreased from 25 to 20
Movement vs R decreased from 25 to 20
Movement vs L decreased from 25 to 20
Weight decreased from 202 to 201
National Popularity increased from Very Popular to Extremely Popular
2034-07-01
Gap vs R decreased from 70 to 65
Avoid Ks Potential decreased from 75 to 70
Avoid Ks decreased from 75 to 70
Infield Arm decreased from 30 to 25
Movement Potential increased from 20 to 25
Movement increased from 20 to 25
Movement vs R increased from 20 to 25
Movement vs L increased from 20 to 25
Weight increased from 199 to 202
2034-01-01
Eye Potential decreased from 50 to 45
Eye decreased from 50 to 45
Movement Potential decreased from 25 to 20
Movement decreased from 25 to 20
Movement vs R decreased from 25 to 20
Movement vs L decreased from 25 to 20
Weight increased from 198 to 199
National Popularity decreased from Extremely Popular to Very Popular
2033-07-01
Contact Potential decreased from 70 to 65
Contact decreased from 70 to 65
Contact vs R decreased from 75 to 70
Eye vs R decreased from 55 to 50
Eye vs L decreased from 40 to 35
Bunt for Hit increased from 30 to 35
Movement Potential increased from 20 to 25
Movement increased from 20 to 25
Movement vs R increased from 20 to 25
Movement vs L increased from 20 to 25
Control Potential increased from 20 to 25
Control increased from 20 to 25
Control vs R increased from 20 to 25
Control vs L increased from 20 to 25
2033-01-01
Bunt for Hit decreased from 35 to 30
Weight decreased from 199 to 198
2032-07-01
Contact vs R decreased from 80 to 75
Contact vs L decreased from 55 to 50
Power vs L increased from 20 to 25
Eye vs L increased from 35 to 40
Bunt for Hit increased from 30 to 35
Weight decreased from 202 to 199
2032-01-01
Contact vs R increased from 75 to 80
Gap vs R increased from 65 to 70
Gap vs L increased from 40 to 45
Power vs L decreased from 25 to 20
Eye vs L decreased from 40 to 35
2031-07-01
Contact vs R decreased from 80 to 75
Gap Potential decreased from 65 to 60
Gap decreased from 65 to 60
Gap vs R decreased from 70 to 65
Gap vs L decreased from 45 to 40
Bunt for Hit decreased from 35 to 30
Weight decreased from 203 to 202
2031-01-01
Contact vs L increased from 50 to 55
Gap vs R decreased from 75 to 70
Power Potential decreased from 30 to 25
Power decreased from 30 to 25
Power vs R decreased from 30 to 25
Eye vs R increased from 50 to 55
Eye vs L increased from 35 to 40
Avoid Ks Potential decreased from 80 to 75
Avoid Ks decreased from 80 to 75
Avoid Ks vs R decreased from 80 to 75
Avoid Ks vs L decreased from 70 to 65
Bunt for Hit increased from 25 to 35
Infield Range decreased from 25 to 20
Infield Error decreased from 35 to 30
Infield Arm decreased from 35 to 30
Turn Double Play increased from 20 to 25
Outfield Arm decreased from 35 to 30
Movement Potential decreased from 25 to 20
Movement decreased from 25 to 20
Movement vs R decreased from 25 to 20
Movement vs L decreased from 25 to 20
Control Potential decreased from 25 to 20
Control decreased from 25 to 20
Control vs R decreased from 25 to 20
Control vs L decreased from 25 to 20
GB% decreased from 48% to 47%
National Popularity increased from Very Popular to Extremely Popular
2030-07-01
Contact Potential decreased from 75 to 70
Contact decreased from 75 to 70
Speed increased from 45 to 50
2030-01-01
Contact Potential increased from 70 to 75
Contact increased from 70 to 75
Gap Potential decreased from 70 to 65
Gap decreased from 70 to 65
Weight decreased from 205 to 203
National Popularity increased from Popular to Very Popular
2029-07-01
Contact Potential decreased from 75 to 70
Contact decreased from 75 to 70
Avoid Ks vs L decreased from 75 to 70
Bunt for Hit decreased from 30 to 25
GB% increased from 47% to 48%
Weight increased from 202 to 205
2029-01-01
Power Potential increased from 25 to 30
Power increased from 25 to 30
Power vs R increased from 25 to 30
C defense increased from 65 to 70
Weight increased from 201 to 202
National Popularity increased from Well Known to Popular
2028-07-01
Contact Potential decreased from 80 to 75
Contact decreased from 80 to 75
Gap vs R decreased from 80 to 75
Eye Potential increased from 45 to 50
Eye increased from 45 to 50
Catcher Ability increased from 65 to 70
GB% increased from 45% to 47%
Weight increased from 200 to 201
2028-01-01
Weight decreased from 201 to 200
Local Popularity increased from Well Known to Extremely Popular
National Popularity increased from Fair to Well Known
2027-07-01
Contact Potential increased from 75 to 80
Contact increased from 75 to 80
Gap vs R increased from 75 to 80
Power vs R decreased from 30 to 25
Eye Potential decreased from 50 to 45
Eye decreased from 50 to 45
Outfield Error decreased from 45 to 40
Weight increased from 200 to 201
2027-01-01
C defense increased from 60 to 65
GB% increased from 44% to 45%
Weight decreased from 202 to 200
Local Popularity increased from Unknown to Well Known
National Popularity increased from Unknown to Fair
2026-07-01
Sac Bunt decreased from 50 to 45
Speed increased from 40 to 45
Outfield Error increased from 40 to 45
Catcher Ability increased from 60 to 65
Catcher Arm increased from 50 to 55
C defense increased from 50 to 60
Weight decreased from 203 to 202
2026-01-01
Gap vs R decreased from 80 to 75
Outfield Error decreased from 45 to 40
Weight increased from 200 to 203
2025-07-01
Power vs R increased from 25 to 30
Avoid Ks vs L decreased from 80 to 75
Sac Bunt increased from 45 to 50
Outfield Error increased from 40 to 45
Weight increased from 199 to 200
2025-01-01
Contact increased from 70 to 75
Eye Potential increased from 45 to 50
Eye increased from 45 to 50
Eye vs R increased from 45 to 50
Avoid Ks vs L increased from 75 to 80
Stealing increased from 30 to 35
Outfield Error decreased from 45 to 40
C defense increased from 45 to 50
Local Popularity decreased from Insignificant to Unknown
2024-07-01
Contact Potential increased from 70 to 75
Contact increased from 65 to 70
Contact vs R increased from 75 to 80
Contact vs L increased from 45 to 50
Power vs L increased from 20 to 25
Eye increased from 40 to 45
Eye vs R increased from 40 to 45
Eye vs L increased from 30 to 35
Avoid Ks increased from 75 to 80
Avoid Ks vs L increased from 70 to 75
Catcher Arm increased from 45 to 50
Weight decreased from 200 to 199
2024-01-01
Contact increased from 60 to 65
Contact vs R increased from 70 to 75
Contact vs L increased from 40 to 45
Eye increased from 35 to 40
Eye vs R increased from 35 to 40
Avoid Ks vs R increased from 75 to 80
Avoid Ks vs L increased from 65 to 70
Speed increased from 35 to 40
Outfield Error increased from 40 to 45
GB% increased from 42% to 44%
Local Popularity increased from Unknown to Insignificant
2023-07-01
Contact increased from 50 to 60
Contact vs R increased from 55 to 70
Contact vs L increased from 35 to 40
Eye increased from 30 to 35
Eye vs R increased from 30 to 35
Eye vs L increased from 25 to 30
Avoid Ks increased from 55 to 75
Avoid Ks vs R increased from 55 to 75
Avoid Ks vs L increased from 50 to 65
Outfield Arm decreased from 40 to 35
Catcher Ability increased from 55 to 60
C defense increased from 40 to 45
2023-01-01
Contact increased from 45 to 50
Contact vs R increased from 50 to 55
Contact vs L increased from 30 to 35
Power Potential decreased from 30 to 25
Power increased from 20 to 25
Power vs R increased from 20 to 25
Eye increased from 25 to 30
Eye vs R increased from 25 to 30
Avoid Ks increased from 50 to 55
Avoid Ks vs R increased from 50 to 55
Avoid Ks vs L increased from 45 to 50
Sac Bunt decreased from 50 to 45
Baserunning increased from 20 to 25
Infield Arm decreased from 40 to 35
GB% decreased from 43% to 42%
Hold increased from 20 to 25
Weight increased from 198 to 200
2022-07-01
Contact Potential increased from 65 to 70
Contact increased from 40 to 45
Contact vs R increased from 40 to 50
Gap Potential increased from 65 to 70
Gap increased from 65 to 70
Gap vs R increased from 75 to 80
Eye vs L increased from 20 to 25
Avoid Ks increased from 45 to 50
Avoid Ks vs R increased from 45 to 50
Avoid Ks vs L increased from 40 to 45
Infield Arm increased from 35 to 40
Outfield Range decreased from 50 to 45
Catcher Arm increased from 40 to 45
C defense increased from 35 to 40
GB% decreased from 45% to 43%
Weight increased from 197 to 198
2022-01-01
Contact increased from 30 to 40
Contact vs R increased from 35 to 40
Contact vs L increased from 25 to 30
Gap Potential decreased from 70 to 65
Gap increased from 50 to 65
Gap vs R increased from 45 to 75
Gap vs L increased from 35 to 45
Eye Potential increased from 40 to 45
Eye increased from 20 to 25
Eye vs R increased from 20 to 25
Avoid Ks increased from 35 to 45
Avoid Ks vs R increased from 35 to 45
Avoid Ks vs L increased from 35 to 40
Outfield Range increased from 45 to 50
Catcher Ability increased from 50 to 55
GB% decreased from 46% to 45%
Weight increased from 195 to 197
2021-07-01
Contact vs R increased from 30 to 35
Gap increased from 45 to 50
Gap vs R decreased from 50 to 45
Gap vs L increased from 30 to 35
Power Potential increased from 25 to 30
Avoid Ks vs L increased from 30 to 35
Outfield Error increased from 35 to 40
C defense increased from 30 to 35
Weight decreased from 196 to 195
2021-01-01
Contact Potential decreased from 70 to 65
Contact increased from 25 to 30
Contact vs R increased from 25 to 30
Gap Potential increased from 65 to 70
Gap increased from 25 to 45
Gap vs R increased from 30 to 50
Gap vs L increased from 25 to 30
Infield Range decreased from 30 to 25
Outfield Range decreased from 50 to 45
Outfield Arm increased from 35 to 40
Catcher Ability increased from 45 to 50
C defense increased from 0 to 30
Weight increased from 194 to 196
Height increased from 183 to 185
2020-07-01
Weight increased from 191 to 194