CALL-UPS: June 15-21, 2021

Pictured: Daniel Camarena (LHP, SD)

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 21, 2021

Mason Thompson (RHP, SDP)
A 6’7’’, 223-pound right-hander who was converted full-time to the bullpen in 2020 in the Fall Instructional League, Thompson has seen his fastball tick up from 90-92 mph as a starter to 96-99 out of the bullpen. Thompson featured a four-pitch mix as a starter but has mostly relied on his fastball and a plus...

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 20: Justin Dean (OF, CHC), Trei Cruz (SS, DET), and Will Banfield (C, CIN)
Jun 20 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
Callups for May 25: Brycen Mautz (LHP, STL), Victor Mesa Jr. (OF, TB), Rikuu Nishida (2B/OF, CHW), Drew Sommers (LHP, DET)
May 25 2026 3:01am

Tools