Jake Peavy threw four dominant innings in his first career relief appearance and the Chicago White Sox beat the Washington Nationals 3-0 on Saturday.
Peavy (4-1) gave up a hit and struck out seven, combining with starter John Danks, Brian Bruney and closer Sergio Santos on a two-hitter that snapped Washington's five-game winning streak.
Danks left in the second inning because on an injury, Bruney gave up a hit in 2 1-3 innings, and Santos followed Peavy by getting the last three outs for his 15th save.
Peavy threw 55 pitches in his first appearance out of the bullpen after 238 career starts.
Chicago native and former Cub Tom Gorzelanny (2-6) matched his longest outing of the season with seven innings, allowing one run and seven hits while striking out eight.