Justin Upton hit a solo homer with two outs in the eighth inning off Zack Greinke to give the San Diego Padres a 2-1 victory over the Los Angeles Dodgers on Saturday night. Dodgers manager Don Mattingly challenged the play, contending a fan may have reached over the wall trying to catch the ball. Greinke, who came in 5-0 with a 1.53 ERA against San Diego in 10 career starts, had pitched well into the eighth inning.