Amir Khan will make his welterweight debut against former Ricky Hatton foe Luis Collazo on the undercard of Floyd Mayweather's fight with Marcos Maidana in Las Vegas on 3 May.
The bout with Collazo will be Khan's first in 13 months since he struggled to dispatch veteran Julio Diaz in Sheffield last April.
Khan clearly hopes victory over the 32-year-old Collazo will propel him closer to a lucrative showdown with Mayweather.
Hatton also made his welterweight debut against Collazo in Boston in May 2006, when the Manchester man was highly fortunate to escape with a unanimous decision win.
Collazo will go into the fight with a record of 35 fights and five losses and is on a four-fight winning streak, including an emphatic second round stoppage of former WBC champion Victor Ortiz in January.