Though the San Francisco Giants have a comfortable lead atop the NL West, Ryan Vogelsong might be one of his team's few concerns.
Vogelsong hopes to bounce back from another rough start Sunday when he tries to help the Giants to a fifth straight victory and first road sweep of the Arizona Diamondbacks in two years.
Buster Posey hit a two-run homer and Barry Zito threw 6 2-3 strong innings for San Francisco (83-62) in Saturday's 3-2 win. Looking to match a season high with their fifth consecutive victory, the Giants also are trying for a fifth straight win at Chase Field, where they have not swept the Diamondbacks (71-74) since July 22-25, 2010.
San Francisco owns a 7 12-game lead over Los Angeles in the West.
"What's been nice is guys are continuing to go out with that fire and play hard," Posey said. "Nobody's taking anything for granted."
Vogelsong (12-8, 3.40 ERA), however, needs to get back on track.
The right-hander is 2-3 with a 9.37 E...