The Kansas City Royals ran into a big pitching effort in a series ending loss to Cleveland Thursday.

Corey Kluber had everyone in Cleveland’s clubhouse smiling after he struck out a career-high 11 and pitched a four-hitter for his first complete game, leading the Indians to a 5-1 win over the Royals on Thursday.

Kluber (2-2) didn’t walk a batter, and his rare outing allowed Cleveland manager Terry Francona to give some needed rest to his bullpen.

“That was really fun to watch,” Francona said. “He had everything working. His fastball was going both ways, change-up, location. He worked ahead and he threw a ton of strikes. That was really impressive.”

Kluber is the first Cleveland pitcher to throw a complete game while recording 11 strikeouts, no walks or earned runs since Len Barker’s perfect game in 1981.