Amir Khan takes on Samuel Vargas ‘feeling better now than I did at 25’

Welterweight believes a victory in Birmingham could set him on the path towards becoming a world champion againWhenever Amir Khan flexes his right hand he sees multiple scars from an operation two years ago in which part of his hip bone was grafted into his broken fist. But, as he prepares to face Samuel Vargas in Birmingham on Saturday night, he says there is no permanent mental damage from the three brutal stoppages on his record – and that, at 31, he still has plenty left in the tank.&l