Edwin Encarnacion hit a three-run homer, Dallas Keuchel threw five scoreless innings and the Chicago White Sox beat the Kansas City Royals 8-2 on Sunday to complete a four-game sweep.

Keuchel (6-2) left the game with lower back stiffness after throwing a few warmup pitches before the sixth inning. He threw 49 pitches, allowed two hits and struck out two.

The AL Central-leading White Sox went ahead 5-0 in the seventh inning against reliever Josh Staumont. Encarnacion hit a 448-foot blast into the second deck of the fountains beyond the wall in left-center to score Yasmani Grandal and Jose Abreu, who had singled to extend his hitting streak to 20 games.

Royals starter Matt Harvey (0-3) was yanked after throwing 40 pitches. He went 2 1/3 innings, allowing four hits and one run.

Tim Anderson had three hits for the White Sox.

Yolmer Sanchez, making his second start of the season, led off the third inning with a double to left-center and scored on a single by Grandal.

With two outs in the sixth, Luis Robert walked and stole second, and Nomar Mazara doubled to the gap in left-center to put the White Sox ahead 2-0.

Edward Olivares hit his first home run as a Royal, a two-run blast into the left-field bullpen off Steve Cishek that got Kansas City within 5-2 in the seventh.

Grandal, Encarnacion and Abreu drove in runs in the eighth for Chicago.