SAN DIEGO — J.T. Realmuto doubled in Bryce Harper with the go-ahead run with two outs in the eighth inning and Cristopher Sánchez was impressive for 7 1/3 innings as the Philadelphia Phillies beat the San Diego Padres 2-1 on Sunday to prevent a three-game sweep.

For the first two games of the series, the Phillies could not figure out the Padres bullpen. The six runs they’d scored across Friday and Saturday’s losses had all come against San Diego’s starters. But after Sunday starter Nick Pivetta walked off the mound with two outs in the seventh,