Despite a 12-month lay-off, pride of Bolton Khan is brimming with confidence ahead of his highly anticipated bout against tricky southpaw Luis Collazo

Haymon currently works with pound-for-pound King Floyd Mayweather, three-time world champion Adrien Broner and reigning WBC and WBA light welterweight champion Danny Garcia

Khan will make his welterweight debut on the undercard for Mayweather’s bout against Marcos Maidana at the MGM Arena