HOUSTON (AP) – Salvador Perez tagged Houston reliever Ken Giles for a tiebreaking two-run homer in the eighth inning, lifting the Kansas City Royals over the Houston Astros 4-2 Wednesday night.

The World Series champion Royals have taken two of the three from the team they beat in the decisive Game 5 of the AL Division Series last October. This four-game set wraps up Thursday.

Giles (0-1) retired the first two batters in the eighth before walking Alex Gordon on a full count. Perez followed with a drive off the facade above the Crawford Boxes in left field.

Giles has given up three home runs in four games, and flung his glove in the dugout after this latest shot. He was acquired from Philadelphia in the offseason after giving up a total of three homers in 113 games over the past two years.

Jose Altuve had three hits for Houston, including a solo home run.

Luke Hochevar (1-0) got the win and Joakim Soria pitched the ninth for his first save.