While the Rafael Devers-Giants trade in June was likely the trade with the most star-power this year, the Padres' blockbuster trade for A's closer Mason Miller was easily the most gutsy. AJ Preller traded away No.

The Philadelphia Phillies may have had a shot at electric reliever Mason Miller, but it would have required paying a high price.

The San Diego Padres gave up top-3 prospect Leo De Vries to the Athletics for closer Mason Miller, a sign of just how hot the relief market is that should have the Philadelphia Phillies thrilled about the relative pittance they paid for Jhoan Duran.