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 April 28: Travis Bazzana (2B, CLE)
Apr 28 2026 3:01am
Callups for April 27: Cam Sanders (RHP, PIT), Blas Castano (RHP, COL) & Jesus Valdez (IF, ARI).
Apr 27 2026 3:01am
Callups for April 20: Wilber Dotel (RHP, PIT), Mason Black (RHP, KC) & Andrew Alvarez (LHP, WAS)
Apr 20 2026 3:01am
Callups for April 12: Noah Schultz (LHP, CHW) & Charlie Barnes (LHP, CHC)
Apr 13 2026 3:01am
Callups for April 6: George Klassen (RHP, LAA), Garrett Acton (RHP, Minnesota Twins), Tanner Murray (UT, CHW) & Christian Roa (RHP, HOU)
Apr 6 2026 3:01am

Tools