| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary | | Jamaica, Giomar | SP | Free Agent | 23 | 09/08/2021 | Nueva Guinea | NCA | Right | Right | 6' 2" | 185 lbs | - | | Jaramillo, Jose | RP | Philadelphia Fury | 23 | 05/14/2021 | Comonfort | MEX | Left | Left | 5' 11" | 175 lbs | $760,000 | | Jennings, Matt | SP | Tampa Bay Sunrays | 32 | 10/12/2012 | Menlo Park | USA | Right | Right | 6' 4" | 200 lbs | $16,000,000 | | Jimenez, Miguel | SP | Houston Rangers | 23 | 04/14/2022 | Chihuahua | MEX | Right | Right | 6' 0" | 175 lbs | $1,597,520 | | Jimenez, Oscar | SS | Toronto Robbers | 19 | 12/02/2025 | Mazatlan | MEX | Right | Right | 6' 4" | 180 lbs | $760,000 | | Johnson, Josh | 1B | Free Agent | 40 | 08/30/2004 | Headland | USA | Right | Left | 6' 5" | 200 lbs | - | | Johnson, Neal | CF | Boston Kings | 24 | 11/10/2020 | Tucson | USA | Right | Right | 6' 3" | 180 lbs | $760,000 | | Johnstone, Davy | RP | Denver Queens | 23 | 07/15/2021 | Montreal | CAN | Right | Right | 6' 3" | 195 lbs | $1,629,440 | | Joly, Chris | 2B | Jacksonville Jackals | 22 | 11/05/2022 | Longueuil | CAN | Right | Right | 6' 0" | 170 lbs | $760,000 | | Joly, Daniel | 3B | Arlington Arsenal | 23 | 02/02/2022 | Delmas | HAI | Right | Right | 5' 11" | 180 lbs | $760,000 | | Jones, Devin | C | Leon Toltecs | 33 | 03/17/2012 | Colorado Springs | USA | Right | Right | 6' 1" | 200 lbs | $4,996,800 | | Jones, Joe | SP | Philadelphia Fury | 29 | 07/20/2015 | Port Charlotte | USA | Right | Right | 6' 2" | 195 lbs | $24,000,000 | | Jones, Latrell | RP | Denver Queens | 22 | 05/25/2022 | New Albany | USA | Right | Left | 6' 4" | 200 lbs | $760,000 | | Jones, Matt | C | Leon Toltecs | 24 | 01/22/2021 | Columbia City | USA | Right | Right | 6' 2" | 200 lbs | $760,000 | | Jordan, Scott | 2B | Chicago Hawks | 24 | 07/31/2020 | Elsmere | USA | Left | Right | 6' 6" | 200 lbs | $760,000 | | Joyce, Chris | C | Miami Makos | 31 | 04/04/2014 | Edmonds | USA | Left | Right | 6' 0" | 195 lbs | $10,000,000 | |