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 Chicago 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 Chicago 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 on Aug. 7 against the Royals.