Amir Khan and Devon Alexander squared up to one another ahead of their Las Vegas fight on 13 December.

The welterwight showdown sees 28-year-old Khan face American Alexander at the MGM Grand casino and hotel, with Khan hoping that victory will set him up for a fight with Floyd Mayweather in 2015.

Saturday's clash will be Khan's first fight since defeating veteran American Luis Collazo in his welterweight debut in May.