Dodgers fall, 2-1, to Padres when Justin Upton homers off Zack Greinke

KEY MOMENT: Padres outfielder Justin Upton blasted a solo home run off Zack Greinke with two outs in the bottom of the eighth inning to break a 1-1 stalemate. The home run was the 13th of the season for Upton and seventh allowed this season by Greinke.

ON THE MOUND: Greinke’s personal winless streak extended to seven starts, as the right-hander was failed again by the Dodgers offense. Greinke was charged with two runs and eight hits over eight innings. He struck out seven and walked one. Greinke has posted a 2.28 earned-run average over his current winless streak.

AT THE PLATE: Padres starter Ian Kennedy limited the Dodgers to a run and four hits over the first seven innings of the game. The Dodgers scored their only run of the game on a leadoff home run by Yasmani Grandal in the top of the third inning. Grandal’s home run tied the game, 1-1. The Dodgers finished the game with five hits. Yasiel Puig led off the ninth inning with a single off Padres closer Craig Kimbrel, but Adrian Gonzalez followed that up by grounding into a double play. Howie Kendrick struck out to end the game.

EXTRA BASES: Hector Olivera was hitless in four at-bats in his first game with triple-A Oklahoma City. Promoted from double A the previous day, Olivera started at second base and batted seventh. … Sidelined outfielder Scott Van Slyke started a minor-league rehabilitation assignment with class-A Rancho Cucamonga.

DISCIPLINARY REPORT: Gonzalez was unapologetic about his seventh-inning ejection in the series opener Friday night. Gonzalez maintained his at-bats in the fifth and seventh inning of the 4-3 victory were compromised by errant strike calls by home plate umpire Doug Eddings. Gonzalez said when he protested a called first strike in his seventh-inning at-bat, he was told by Eddings, “You know what? Now, you have to swing at that pitch.” Gonzalez said he became enraged. “At that point, that’s when I lost it,” he said. “There’s no way I was staying in the game if I made an out.” Gonzalez grounded into an inning-ending double play, after which he exchanged words with Eddings and was thrown out.

UP NEXT: Mike Bolsinger (4-1, 2.08 ERA) will face the Padres and James Shields (7-0, 3.79) at Petco Park on Sunday at 1 p.m. TV: SportsNet LA. Radio: 570, 1020.

—Dylan Hernandez