Padres president of baseball operations A.J. Preller began his trade deadline maneuvers by sending top prospect Leo De Vries and multiple pitching prospects to the Athletics for closer Mason Miller and starting pitcher JP Sears. A source confirmed the pieces in the trade, which was first reported by ESPN.

The San Diego Padres have acquired closer Mason Miller and left-hander JP Sears from the Athletics. They made the trade on Thursday, adding major upgrades to their pitching staff.

After their trade deadline moves on Thursday, the San Diego Padres have put together the strongest bullpen in MLB. San Diego has been battling to hold on to one