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 March 31: Jose Fernandez (SS, ARI)
Mar 31 2026 3:01am
NL East Callups for March 29, 2026: Deyvison De Los Santos (1B, MIA)
Mar 29 2026 2:59am
NL Central Callups for March 29, 2026: Jeferson Quero (C, MIL)
Mar 29 2026 2:58am
NL West Opening Day Callups for March 25: Andrew Hoffmann (RHP, ARI), TJ Rumfield (1B, COL), Alex Freeland (IF, LAD), Bradgley Rodriguez (RHP, SD), Caleb Kilian (RHP, SF), Jared Oliva (OF, SF) & Daniel Susac (C, SF)
Mar 26 2026 3:05am
The AL West does not have any of MLB's elite prospects, but several rookies may be of interest in your fantasy leagues.
Mar 26 2026 3:04am

Tools