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 May 3.
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.