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.

Mason Miller made his debut with the San Diego Padres on Friday night, plus when he found out that a trade could happen.

The San Diego Padres pulled off a big trade when they acquired Mason Miller from the Athletics, but Mike Shildt didn't guarantee anything.