Amir Khan's next fight will be against the unbeaten Carlos Molina in Los Angeles on 15 December.
Last week, Khan confirmed that his new trainer will be the American Virgil Hunter, following his recent split from Freddie Roach.
The former WBA and IBF world light-welterweight champion had been linked with a rematch with Paul McCloskey.
Molina, a 25-year-old American, is undefeated in 18 professional bouts, winning 17 and drawing one. In June he beat Marcos Leonardo Jimenez on points to take the WBO Inter-Continental lightweight title.
"He's a tricky fighter who possesses a lot of natural speed," said Khan. "I always want to face hungry young fighters and in Molina I'm up against a guy who has ambitions of world title success."
American boxing writers named Hunter trainer of the year for 2011 after he guided Andre Ward to the WBA and WBC super-middleweight titles, including victory over Britain's Carl Froch.
"Everyone in boxing knows about his skills and the success he has enjoyed over the last few years," added Khan.
"I'm looking forward to the start of my training camp and working on some new things with him. With Virgil in my corner, I know that I can get back to the very top of the light-welterweight division."