CALL-UPS: June 1-7, 2021

Jackson Kowar (RHP, KC)

The players covered in this column are only those who still have rookie status as determined by MLB, and who have not already been written up earlier in 2021. Find previous Call-up profiles on the News tab of the player's PlayerLink page. 

Contributing writers: Jeremy Deloney, Chris Blessing, Nick Richards, Matthew St-Germain, Andy Smith and Tanner Smith

 

June 7, 2021

Jackson Kowar (RHP, KC)
A former first-round pick out of the University of Florida, Kowar has pitched well at every minor league stop, including a dominant 0.85 ERA in 31.2 innings in AAA in 2021 with a K% of 33.9%. Kowar has always been known as a prospect for his fastball-changeup combo, with the fastball typically coming in at 93-95 with good...

Almost!

You’re just a few clicks away from accessing this feature and hundreds more throughout the year that have a singular goal in mind: Winning your league. Subscribe to BaseballHQ.com here!

Already a subscriber? Sign in here

More From Callups

Callups for June 27: Sean Keys (1B/3B, TOR), Tsung-Che Cheng (INF, BOS),Zach McCambley (RHP, CIN), Cooper Ingle (C/OF, CLE), Drew Cavanaugh (C, SF)
Jun 27 2026 3:01am
Callups for June 22: Jose Corniell (RHP, TEX), Jose Cabrera (RHP, ARI), Matt Krook (LHP, A's), Brian Navarreto (C, MIA)
Jun 22 2026 3:01am
Callups for June 15: Cooper Pratt (SS, MIL), Blake Hunt (C, SD)
Jun 15 2026 3:01am
Callups for June 6: LuJames Groover (3B, ARI) and Samy Natera Jr. (LHP, LAA)
Jun 6 2026 3:01am
Callups for June 1: Josh White (RHP, MIA), Jonah Cox (OF, SF), Mike Paredes (RHP, MIN)
Jun 1 2026 3:01am

Tools