Sam Hyde was pulled out of his fight with Richard Riakporhe in the eighth round after suffering a horror eye injury.
Hyde was caught with a right hand and his eye quickly began to swell up into a haematoma.
His coach Joe Gallagher threw in the towel with his fighter struggling to see.
“I was down on the scorecards so I had to pull it out of the bag,” Riakporhe said.
“I hit him with a hook, his face swelled up so I targeting it. I thought they should throw in the towel.
“A lot of people wouldn’t have taken this risk in their eighth fight.”
Both men came into the fight unbeaten but Hyde dominated for large spells.
Working behind his jab, he looked to be just over two rounds away from a points win before he was caught.
Riakporhe’s manager Dillian Whyte said: “Richard is inexperienced.
“He would have worried about doing 10 rounds. But he pulled it out of the bag.”
Also on the undercard, heavyweight Dave Allen beat the brave Ariel Esteban Bracamonte into submission.
The Argentinian came to fight and was withstanding Allen’s best shots through seven rounds.
But after taking a huge right hand, his corner pulled him out before the bell for the eighth session.
Allen said: “That was awful. I want to apologise to everyone here.
“He was tough, really tough, and hit really hard.
“Another wake-up call. How many do I need?
“There no excuses, I’m not fit enough, I’m not conditioned enough.”