Conor Benn claimed a unanimous points decision win over Rodolfo Orozco on his return to the ring in Florida.
In his first fight since the lifting of his provisional doping suspension, Benn won the 10-round fight 99-91, 99-91, 96-94 on the judges’ scorecards.
"I needed the rounds,” said Benn. “I’ve been through hell and back.
“Britain’s my home, it’s only right I fight back there sooner rather than later.”
Benn failed two Voluntary Anti-Doping Association tests in the build-up to his fight with Chris Eubank Jr last October, testing positive for female fertility drug clomifene.
The 26-year-old insists he is innocent of intentionally doping.
Benn, who had not fought since April 2022 and is now undefeated in 22 bouts, said: “We didn’t want a walk in the park. I needed the rounds after 18 months out.
"He’s a true Mexican, my first Mexican I’ve fought, and we knew he was durable. Credit to him, he’s never been stopped before and he’s one tough man and I hope he progresses.
"They are stronger and take shots more. I don’t think there was ring rust, I was going through the gears after going through hell.”