Dillian Whyte stopped Ebenezer Tetteh late in the seventh round in Gibraltar to return to action victorious.
The former interim WBC world heavyweight champion rained blows on the Ghanaian, forcing him to retire.
The 36-year-old is fighting for the first time since then defeating Christian Hammer in Ireland in March, he looked sharp when he rocked Tetteh with a right hand in the fourth round.
The 36-year-old from Accra had blood dripping from his nose as he started for the fifth time and was asked if he wanted to continue racing before the start of the next round and then withdraw after the bell in the seventh round.
“I’m glad Tetteh is up, he’s tough,” Whyte said. “I needed the rounds, I need to get used to the pace of the rounds and using the jabs.
“I had a long break and my last fight only lasted three rounds.
“I was angry in the last fight, so I just went there to kill and didn’t use my boxing skills.”