"He wants to be that guy," Mattingly said. "We're seeing a guy who is more and more confident."
San Diego had the potential tying run on third in the eighth after Reymond Fuentes singled, went to second on a wild pitch by Ronald Belisario and advanced to third on a groundout.
Rodriguez came in and struck out Will Venable before pinch-hitter Chris Denorfia grounded back to the mound. The ball bounced off the pitcher's glove before Rodriguez chased it down and threw out Denorfia to end the inning.
The Dodgers tied the score at 1 in the third on Mark Ellis' RBI single with two outs that scored Carl Crawford, who doubled.
San Diego went ahead in the top of the third on Alexi Amarista's two-out RBI single that scored Fuentes, who walked, got sacrificed to second and stole third.
Fuentes singled in the eighth for his first major league hit.
Padres starter Tyson Ross gave up one run and five hits in five innings. He struck out a career-high 10 and walked one.
"I wish I could have pitched deeper into the game, but they were making me work and having some patient at-bats," he said. "I was just trying to execute in a couple of tough situations. Giving up one run and keeping us in the ballgame is always my goal."
The Padres were limited to their fewest hits in the three-game series after getting 11 on Friday and 10 on Saturday. They lost for the sixth time in eight games.
NOTES: Newly acquired INF Michael Young will join the Dodgers on Monday in Denver, where they open a six-game trip that includes three games in Cincinnati. ... The Dodgers recalled C Drew Butera, SS Dee Gordon, RHP Stephen Fife, RHP Peter Moylan and 1B-OF Scott Van Slyke from Triple-A Albuquerque. All but Butera have seen time with the big club this season. Butera will be making his Dodgers debut after being acquired from Minnesota last month. ... Dodgers manager Don Mattingly said OF Matt Kemp and RHP Chris Withrow will join the team at some point. Kemp has been used as the DH as he rehabs a sprained left ankle at Class-A Rancho Cucamonga, where he was 0 for 11 with five strikeouts going into Sunday. "I know he doesn't feel good yet at the plate," Mattingly said. ... The Padres recalled C Chris Robinson and LHP Tommy Layne from Triple-A Tucson.
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