The Chicago White Sox designated hitter collected two big hits and three RBIs in his first two at-bats Sunday, leading the Sox to a 9-3 victory against the Kansas City Royals in front of 12,102 at Kauffman Stadium.
Mercedes went 2-for-5 with a double, a triple and three RBIs, while José Abreu also had two hits and three RBIs as the Sox completed a sweep of the three-game series.
Sox starter Lucas Giolito allowed one run on four hits in five innings to earn his first victory since April 6. Giolito (2-3) struck out two and walked two in his 93-pitch outing.