Will Klein
P Will Klein
St. Louis Cardinals (ML)
Bat: R / Throw: R
Age: 28
Birthdate:
Nov. 28, 1999 (28y 6m 29d)
Born In:
Bloomington, IN, USA
Nationality:
American
Height/Weight:
6'5"/219
Entry:
Unknown
Contract:
$740k / 1 year
ML Service Time:
0 years, 139 days
OSA Rating History
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Ratings Changes
2028-05-15
Scouting Accuracy decreased from Average to Low
2028-05-08
Weight decreased from 220 to 219
2028-04-10
GB% decreased from 64% to 62%
Fastball Pot increased from 65 to 70
Fastball increased from 65 to 70
HRA Potential decreased from 65 to 60
HRA vs L decreased from 65 to 60
PBABIP increased from 50 to 55
Scouting Accuracy increased from Low to Average
Weight decreased from 221 to 220
2028-02-17
Scouting Accuracy decreased from Average to Low
2028-01-10
Weight increased from 220 to 221
2027-10-20
Weight decreased from 221 to 220
2027-09-06
Movement Potential increased from 55 to 60
HRA Potential increased from 60 to 65
HRA vs L increased from 60 to 65
Scouting Accuracy increased from Low to Average
Role changed from CL to RP
2027-09-01
Role changed from RP to CL
2027-07-12
Scouting Accuracy decreased from Average to Low
2027-06-14
Weight decreased from 222 to 221
2027-05-31
PBABIP vs R increased from 50 to 55
2027-05-24
Movement Potential decreased from 60 to 55
HRA Potential decreased from 65 to 60
PBABIP decreased from 55 to 50
Scouting Accuracy increased from Low to Average
2027-05-17
Weight decreased from 223 to 222
2027-05-03
Weight increased from 222 to 223
2027-04-12
Scouting Accuracy decreased from Average to Low
2027-03-29
Role changed from CL to RP
2027-03-25
Role changed from RP to CL
2027-03-05
Role changed from CL to RP
2027-02-25
Sac Bunt increased from 60 to 65
PBABIP vs L increased from 50 to 55
PBABIP increased from 50 to 55
2026-11-30
Role changed from RP to CL
2026-10-25
Role changed from CL to RP
2026-09-01
Sac Bunt decreased from 65 to 60
Velocity decreased from 95-97 mph to 94-96 mph
GB% decreased from 66% to 64%
Fastball Pot decreased from 70 to 65
Fastball decreased from 70 to 65
PBABIP Potential increased from 50 to 55
Scouting Accuracy increased from Low to Average
2026-07-20
Scouting Accuracy decreased from Average to Low
2026-07-06
Role changed from RP to CL
2026-06-01
Outfield Arm decreased from 40 to 35
Movement Potential increased from 55 to 60
Velocity decreased from 96-98 mph to 95-97 mph
GB% increased from 64% to 66%
Fastball Pot decreased from 75 to 70
Curveball Pot decreased from 70 to 65
Curveball decreased from 70 to 65
HRA Potential increased from 60 to 65
PBABIP Potential decreased from 55 to 50
PBABIP vs L decreased from 55 to 50
PBABIP decreased from 55 to 50
Scouting Accuracy increased from Low to Average
2026-05-04
Weight increased from 221 to 222
2026-04-27
Role changed from CL to RP
2026-04-13
Scouting Accuracy decreased from Average to Low
2026-03-23
Role changed from RP to CL
2026-03-02
Control Potential increased from 35 to 40
Control increased from 35 to 40
Control vs R increased from 35 to 40
Control vs L increased from 35 to 40
Velocity decreased from 97-99 mph to 96-98 mph
GB% increased from 63% to 64%
Fastball decreased from 75 to 70
Curveball Pot increased from 65 to 70
Curveball increased from 65 to 70
Scouting Accuracy increased from Low to Average
2026-02-23
Weight decreased from 222 to 221
2025-12-15
Weight decreased from 223 to 222
2025-08-25
Scouting Accuracy decreased from Average to Low
2025-07-14
Control Potential decreased from 40 to 35
Control decreased from 40 to 35
Control vs R decreased from 40 to 35
Control vs L decreased from 40 to 35
GB% increased from 61% to 63%
HRA vs R increased from 55 to 60
Scouting Accuracy increased from Low to Average
2025-04-14
Control Potential increased from 35 to 40
Control increased from 35 to 40
Control vs R increased from 35 to 40
Control vs L increased from 35 to 40
GB% decreased from 62% to 61%
Catcher Framing decreased from 25 to 20
HRA vs R decreased from 60 to 55
PBABIP Potential increased from 50 to 55
PBABIP vs L increased from 50 to 55
PBABIP increased from 50 to 55
2025-03-06
Role changed from CL to RP