Giants get emotional, lose second-half opener

Bumgarner started both the Giants’ first-half finale and second-half opener and wasn’t nearly as effective in the latter, giving up four runs and two homers in the Giants’ 4-1 loss to the Padres on Friday night.

Brandon Belt struck out in the ninth inning, slammed his bat on the plate, complained to umpire Mike Estabrook and got ejected for the first time in his career.

In the fourth inning, shortly after Bumgarner gave up a home run to Adam Rosales, he had words for Travis Jankowski.

Bumgarner fielded Jankowski’s bunt and made a nice play to flip the ball with his glove to first base to end the inning.

In the fifth, Padres starter Andrew Cashner threw a fastball that drilled Ramiro Pena on the back, and Bumgarner saw it close up as the on-deck hitter.

Bumgarner was pulled after six innings and 103 pitches, having given up as many as four earned runs for just the third time this year.

Three days after teammate Johnny Cueto gave up two homers at Petco Park in the All-Star Game, Bumgarner did the same.

Throughout the first half, Bumgarner was followed by Cueto in the rotation, but Cueto’s workload in the All-Star Game prompted Bochy to push him back to Sunday, sliding Jeff Samardzija (Saturday’s pitcher) between the co-aces.