SAN DIEGO (AP) — Jesse Hahn pitched well into the seventh inning against his former team and Stephen Vogt hit a grand slam as the Oakland Athletics beat the San Diego Padres 9-1 on Monday night.

Hours after San Diego fired long-time manager Bud Black, Hahn (4-5) shut down the team that traded him in the offseason, holding the Padres one run and three hits over 6 2/3 innings while striking out four and walking two.

In the eighth, Vogt hit the first pitch from Cory Mazzoni, who was recalled from Triple-A earlier in the day, into the Jack Deck in right field to give Oakland a 9-1 lead. It was Vogt’s second career grand slam.

San Diego’s Tyson Ross (3-7) was also facing his former team and gave up four runs and seven hits in five innings. He struck out four consecutive batters before the third when Oakland broke through for three runs, and finished with six strikeouts while walking five.

Brett Lawrie had three hits and drove in two runs for the A’s. Ben Zobrist reached base five times, including four walks, and scored twice.

Will Venable doubled home San Diego’s only run in the third inning after a replay challenge was upheld by home plate umpire Mike DiMuro. Venable and interim manager Dave Roberts claimed Venable was hit by a pitch from Hahn, but the at-bat continued and Venable sent the next pitch to the wall in center field, scoring Alexi Amarista.

Venable reached base again on a throwing error by first baseman Max Macy in the fifth that put runners at second and third with two outs, but Hahn recovered to get Cory Spangenberg on a groundout and end the threat. Oakland leads the major leagues with 62 errors.

Drew Pomeranz escaped a two-out jam in the seventh after Hahn left the game, getting Venable to ground out.

Eric O’Flaherty and Fernando Abad each contributed scoreless innings.

TRAINER’S ROOM

Padres: INF/OF Wil Myers was placed on the 15-day disabled list with left wrist tendinitis. Myers played in just three games after being activated from a rehab assignment on June 11.

Athletics: 1B Ike Davis (quad injury) will continue his rehab assignment and likely rejoin the club in Oakland on Wednesday.

UP NEXT

Athletics: LHP Scott Kazmir (3-4, 2.79) looks to build on tossing eight scoreless innings in his last start, a victory over Texas that snapped his four-game losing streak.

Padres: RHP Andrew Cashner (2-8, 4.16) takes the mound for San Diego coming off two straight no-decisions. He gave up four runs in 6 2/3 innings his last time out in Atlanta.