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.

The Padres made 22 player moves ahead of Thursday’s trade deadline, acquiring key pieces to bolster their bullpen and offense for a playoff run.

Here are five winners and three losers from the MLB trade deadline. Nobody worked like San Diego on Thursday. The Padres headlined the day with Mason Miller coming over from the Athletics. The team also added to the lineup with Ramon Laureano and Ryan O'Hearn from the Baltimore Orioles.

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

The Padres already employ a solid closer in the form of Robert Suarez. But Miller is younger, cheaper, and under team control through 2029. Preller can now package Suarez to another club in order to improve the club’s lineup. Or he can stand pat and boast a super ‘pen.

For the second time in four years, A.J. Preller turned the San Diego Padres into the biggest stars of baseball’s trade deadline. In 2022, the San Diego general manager snagged slugger Juan Soto, sending James Wood,