KANSAS CITY, Mo. (AP) — Conor Gillaspie homered leading off the 12th inning Thursday night, lifting the Chicago White Sox to a 4-3 victory over the Royals and their first three-game sweep in Kansas City since 2005.

Gillaspie drove the second pitch he got from Luke Hochevar (3-2) just over the outstretched glove of right fielder Justin Maxwell for his 11th homer.

The tiebreaking shot came after Jacob Petricka made his major league debut in the 11th inning for the White Sox, inheriting runners on first and second with nobody out. Petricka calmly got Salvador Perez to ground into a double play to end the inning.

Addison Reed preserved Chicago’s sixth straight win, and the first of Petricka’s career, when the he left the tying run on second base for his 34th save.