MLB Trade Deadline 2025: Instant Takeaways to Padres Landing Mason Miller originally appeared on Athlon Sports. The surging San Diego Padres entered the 2025 MLB trade deadline with three All-Star relievers already in their bullpen. They now have a fourth.

Preller brought flame-throwing closer Mason Miller along with starter J.P. Sears to San Diego in a deal with the A’s, trading away No. 3 overall prospect Leo De Vries and three other top-20 prospects in the Padres’ system.

DETROIT didn’t have a terribly sexy deadline but added starters Charlie Morton and Chris Paddack along with a few bullpen arms. The WHITE SOX held onto outfielder Luis Robert Jr. He has club options for the next two years, so perhaps we haven’t heard the last about his potential trade value.