Heavyweight Magomed Abdusalamov of Russia was in a medically induced coma on Sunday following brain surgery to remove a blood clot suffered in a 10-round unanimous decision loss to Mike Perez on Saturday night at the Theater at Madison Square Garden in New York.
Abdusalamov was in stable condition and intensive care at Roosevelt Hospital in New York, said Nathan Lewkowicz, vice president of his father Sampson Lewkowicz's promotional company, Sampson Boxing, which promotes Abdusalamov.
"He had surgery to have the blood clot taken out and a small piece of his skull removed to allow the [brain] swelling to go down," Nathan Lewkowicz told ESPN.com. "After the fight he seemed fine, but they took him to the hospital to check him out and because he wasn't feeling so good."
The 32-year-old Abdusalamov (18-1, 18 KOs) suffered an apparent broken left hand and nose during the HBO-televised fight that served as the co-feature to middleweight titleholder Gennady Golovkin's defense against Curtis Stevens.
Abdusalamov was going to the hospital after the fight mainly to have his hand and nose treated. Once he was at the hospital and examined, the blood clot was discovered, Lewkowicz said.
"He was taken to the hospital to make sure he was OK and once he was there they found [the clot]," he said. "He thought he broke his left hand in the second round and also thought he had broken his nose at some point in the fight. But the bigger concern once he was at the hospital was the head injury they discovered."
Perez-Abdusalamov was an intense fight from the outset with the southpaws trading fierce shots in what was the biggest fight so far in either of their careers. But Perez (20-0, 12 KOs), a Cuban defector living in Ireland, took over after the first few rounds and wound up winning 97-92, 97-92 and 95-94 on the judges' scorecards.
"Hopefully, 'Mago' will be out of the hospital in a couple of days," Lewkowicz said. "He took a lot of shots to the head. His left hand is his power hand and once he broke it, he kept throwing with the right hand, but he wasn't the same."
Added HBO Sports president Ken Hershman in a statement: "The thoughts and prayers of all of us at HBO Sports are with Magomed Abdusalamov. We are grateful for the medical care he is receiving here in New York City and out of respect for Magomed and his family, we will wait for any official updates on his condition before making any further statements."
Adusalamov's purse was $40,000; Perez earned $30,000.