Miguel Cotto stepped into the ring for his final fight on Saturday (Dec. 2) to cap off a legendary 17-year career in boxing. However, his farewell fight was spoiled… when he lost.

Instead of what many believed would be an easy win over underdog Sadam Ali, Cotto wasn’t in his best form… and it was Ali who won a unanimous decision and Cotto’s junior middleweight world title.

Cotto-Ali took place at Madison Square Garden, where the boxing legend headlined for the 10th time, garnering a crowd of 12,391.

“Feeling good. Feeling good with the performance,” Cotto said after the fight. “Something happened to my left bicep, seventh round. I don’t want to make excuses. Sadam won the fight. It is my last fight. I am good, and I want to be happy in my home with my family.”

Cotto retires with a 41-6 (33 KOs) record at 37 years old. He won six world titles — including a vacant 154-pound belt back in August against Yoshihiro Kamegai — in four weight divisions: junior welterweight, welterweight, junior middleweight and middleweight.

He is the first Puerto Rican fighter to acheive such feats.

Watch highlights from his final fight up top.