Amir Khan shows us his 'toughest' training drill

Watch as Amir Khan lets us inside his training camp ahead of facing Saul 'Canelo' Alvarez for the WBC middleweight title in Las Vegas to show us his gruelling 'sand-box' routine.

Khan tells our boxing correspondent Mike Costello the drill is one of the 'toughest' he's ever done, and describes the benefits it gives him ahead of stepping up to weight divisions to take on Alvarez at 155lb.

5 live will have full commentary of Alvarez v Khan in the early hours of Sunday 8 May.

This clip is from 5 live Sport, Thursday 28 April 2016.