Luis Valbuena drops his bat in front of Giants catcher Andrew Susac as he watches his solo home run ball leave the ball park in the eighth inning. (TANNEN MAURY / EPA)
Giants outfielder Hunter Pence watches as fans try to catch a home run ball hit by Luis Valbuena in the eighth inning. (TANNEN MAURY / EPA)
Reliever Kyuji Fujikawa in the eighth inning. (TANNEN MAURY / EPA)
Luis Valbuena drops his bat as he hits a single in front of Giants catcher Andrew Susac in the sixth inning. (TANNEN MAURY / EPA)
Reliever Wesley Wright throws in the seventh inning. (TANNEN MAURY / EPA)
Anthony Rizzo makes a catch on a ball hit by the Giants’ Andrew Susac during the fifth inning. (David Banks / Getty Images)
Edwin Jackson leaves the game against the Giants during the third inning. (David Banks / Getty Images)
The Giants’ Andrew Susac runs the bases after hitting a home run during the third inning. (David Banks / Getty Images)
Chris Valaika is greeted after hitting a home run during the second inning. (David Banks / Getty Images)
Chris Valaika gets a pat on the back from John Baker after driving in Luis Valbuena with a two-run home run. (TANNEN MAURY / EPA)
Chris Valaika runs the bases after hitting a home run during the second inning. (David Banks / Getty Images)
Cubs third base coach Gary Jones watches as Luis Valbuena reacts after sliding into third base with a triple in the second inning. (TANNEN MAURY / EPA)
Luis Valbuena slides safely into third base with a triple against the Giants during the second inning. (David Banks / Getty Images)