It’s one, two, three slams for Kendrys Morales…

The 31-year-old Cuban professional baseball first baseman and designated hitter, who signed a lucrative, two-year deal with the Kansas City Royals last offseason, enjoyed what might have been the best offensive game of his Major League Baseball career, hitting three home runs in his team’s 10-3 win Sunday over the Detroit Tigers.

Morales also hit a triple and set a team record with 15 total bases.

“We expected him to have a great year,” said Royals manager Ned Yost.

Morales homered in the third, fourth and eighth innings, becoming the first Kansas City player to go deep three times in a game since Danny Tartabull against Oakland on July 6, 1991.

Morales ended up scoring five times on the day, but he was on deck when Eric Hosmer flied out and ended the top of the ninth.

The Royals won the American League pennant last year, but they finished last in the majors in home runs. They’ve shown more pop in 2015, thanks in part to Morales, who took over the team lead in homers Sunday with 21. Mike Moustakas and Salvador Perez have 20 each.

“It’s not about competition, it’s just about putting up good ABs and everybody doing their part,” Morales said through a translator.

Morales became the second player with 15 total bases in a game this season. Yoenis Cespedes of the New York Mets did it at Colorado on Aug. 21.

George Brett held the previous Royals record of 14 total bases. He did it in a 16-inning game in 1979.