KANSAS CITY, Mo. – Salvador Perez hit a tiebreaking two-run double with two out in the seventh inning, and the Kansas City Royals beat the White Sox, 4-2, on Friday night.

Luis Mendoza pitched seven effective innings as Kansas City won for the third time in four games. Lorenzo Cain hit a solo homer.

Paul Konerko hit a solo drive for the Sox after being activated from the seven-day concussion disabled list. It was Konerko’s first game since he was struck by a Jarrod Dyson elbow while covering first base Aug. 7 against the Royals.