ATLANTA -- Eli Whiteside demonstrated immediately why he was chosen to replace injured Giants catcher Hector Sanchez.

Whiteside entered Wednesday night's game in the ninth inning after starting catcher Buster Posey was removed for a pinch-runner. Whiteside proceeded to usher relievers Jeremy Affeldt, Sergio Romo, Javier Lopez, Santiago Casilla and Brad Penny through the final three critical innings as the Giants outlasted Atlanta, 9-4, in 11 innings.

Whiteside's 2009-11 stint with the Giants enabled him to collaborate smoothly with the pitchers, just as the Giants hoped when they had to place Sanchez on the 15-day disabled list on Wednesday with a sprained left knee.

"Working with these guys the last three years obviously helped a little bit, especially with the stuff they have," said Whiteside, who was recalled from Triple-A Fresno. "It might have been tough for a guy who didn't know them."

Manager Bruce Bochy appreciated Whiteside's experience.

"It's so much easier, the fact that he knows them," Bochy said.

Bochy still opted to start Posey behind the plate on Thursday, despite the dizzying transition that comes with playing a day game after a night game. Bochy noted that Posey was not physically spent after playing first base in Tuesday's series opener and catching on Wednesday.

"The weather has been pretty nice here, so that made it easier," said Bochy, who jokingly added, "[Wednesday's] game went fast when he was in there."

Flurry of rarities in Giants' 11-inning victory

ATLANTA -- The Giants' 9-4, 11-inning victory on Wednesday over the Atlanta Braves prompted a flurry of trivia.

The three-run homers by Brandon Crawford and Gregor Blanco in the 11th marked the third time in the last 40 years that teammates each homered with at least two men on base in the same extra inning, according to the Elias Sports Bureau. Other duos to accomplish this were Oakland's Terry Steinbach and Ruben Sierra in 1993 and Seattle's John Olerud and Ben Davis in 2002.

Elias also discovered that until Wednesday, the last time the Giants had scored as many as six runs in an extra inning was Aug. 7, 2001, at Cincinnati. That uprising featured home runs by Barry Bonds, Andres Galarraga and Marvin Benard.

Crawford's homer, his second of the season, was his first in 249 at-bats.