Welterweight titlist Andre Berto suspected that he had torn his left biceps in either the first or second round of his defense against Carlos Quintana on Saturday night in Sunrise, Fla., and it turned out that he was correct.
Berto told ESPN.com that he was diagnosed with a tear in the muscle Tuesday after seeing his doctor in Winter Haven, Fla., and undergoing an MRI.
"But my tendons are still intact as they can see," Berto said. "So I am gonna have to ice it and rest for a few weeks so the swelling can go down [and] then start rehab."
Berto (26-0, 20 KOs), who had been icing the arm since he knocked out Quintana in the eighth round of his fourth title defense, said his doctor told him he needed six to eight weeks to recover.
"But the doctor said it should be fine," Berto said. "Not a serious tear, just needs time to heal."
Berto added that he was going to Los Angeles to see another specialist for a second opinion.
Despite the injury, Berto, 26, who hadn't fought in 11 months, dominated the fight at the BankAtlantic Center after the second round before stopping former titleholder Quintana with an eighth-round onslaught of blows.
Dan Rafael is ESPN.com's boxing writer.