BILLY JOE SAUNDERS sustained FOUR breaks in the bones around his eye during his defeat to Canelo Alvarez.
The Brit, 31, was caught with a vicious uppercut in the eighth round in Texas.
Saunders' eye instantly swelled up and closed due to the multiple fractures of the orbital bone before his corner called the fight.
He was rushed to hospital and Eddie Hearn confirmed he was undergoing surgery the day after.
And the boxer has now come out and updated fans on his progress.
He wrote on his Facebook: "Thanks everyone for msg.
"Broken eye socket and broken cheekbone in three places - operation yesterday, all went well.
"You win some and lose some. Didn't feel out my league but got caught with a good shot and couldn't see.
"Thank you all who watched. I'll be back, God bless you all."
Saunders has been slammed for 'quitting' by former WBA middleweight champion Fernando Vargas.
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The 43-year-old retired American said: “You're really going to freaking quit like a V, like a vagina.
“You're really going to do that? ‘Oh, my eye.’ Come on, Vato, really? Unbelievable. How dare you call yourself a champion.
“You quit like a female dog. How dare you do that. You’re an embarrassment to the sport and to all men because you're not even a man.
"You should be embarrassed.”
Brit Daniel Dubois - who sustained a fractured eye socket of his own against Joe Joyce in November - reckons Saunders will have learned a harsh life lesson after suffering the same skull shattering injury he bullied Dubois for.