Eddie Hearn, promoter for two division champion Billy Joe Saunders, says the boxer sustained a 'busted eye socket' during his stoppage loss to Saul 'Canelo' Alvarez.
On Saturday night at AT&T Stadium in Arlington, Canelo stopped Saunders in eight rounds to unify the WBO, WBC, WBA super middleweight titles.
Saunders' right eye was injured during the eight round - courtesy of a Canelo power punch.
When he went back to the corner, he advised his handlers that his vision was no longer there in the affected eye - which prompted an immediate stoppage to the fight.
Hearn, who also works with Canelo on a fight by fight basis, felt Saunders made a very good account of himself with a solid boxing effort.
"He couldn't see," Hearn told DAZN. "I spoke to [trainer] Mark Tibbs. He couldn't see and he wouldn't let him go out.
"I thought Billy boxed beautifully. Canelo is so strong, he took his time. Billy is so tricky, but he busted his eye socket. Canelo coming on strong in the back end of the fight. Too good. It was a great performance by Billy Joe Saunders, he came to win."
Saunders went to the hospital in the aftermath.
Now suffering his first career defeat, Saunders - a former middleweight and super middleweight champion - will still have plenty of opportunities, like fights with Chris Eubank Jr, David Benavidez, Demetrius Andrade, Callum Smith and several others in a loaded weight class.