LAS VEGAS (AP) — Jaime Munguia said to expect “a full-out Mexican war” against Canelo Alvarez on Cinco de Mayo weekend.

And while Munguia (43-1) may have suffered the first loss of his career Saturday night, he made good on his promise.

Alvarez (61-2-2), who has been on boxing’s pound-for-pound lists for more than a decade, retained his undisputed super middleweight belt with a unanimous decision.

Judge Tim Cheatham scored the fight 117-110, Steve Weisfeld had it 115-112 and David Sutherland 116-111.

And in a fight that was sure to be significant for Munguia, win or lose, the fiery and powerful boxer put his talent on display early on, overcame being knocked down in the fourth round, and took Alvarez to the distance for a fifth straight fight.

“I came out strong and was winning the early rounds,” said Munguia, 27. “I let my hands go, but he’s a fighter with a lot of experience. The loss hurts because it’s my first loss and I felt strong.”