The San Francisco Giants boosted their rotation for the stretch run by acquiring right-hander Jake Peavy from the Boston Red Sox on Saturday for a pair of minor league pitchers.
The 2007 NL Cy Young Award winner, who was 1-9 with a 4.72 earned-run average with Boston this season, will start Sunday night's game against the Dodgers in San Francisco.
The Giants have plenty of familiarity with Peavy, who pitched for Manager Bruce Bochy with the San Diego Padres in the playoffs in 2005-06.
"It's great to be reunited with Jake," Bochy said by text message. "Look forward to working with him again."