Amir Khan’s trainer Freddie Roach declared the British boxer will be good enough to beat Floyd Mayweather after he grew “from a boy to a man” during last night’s world title defence.

Amir Khan’s high-profile clash with Marco Antonio Barrera will go ahead on March 14 as planned after a medical examination confirmed the Mexican legend will be fit to box.

Amir Khan will face Frenchman Rachid Drilzane in his 10th professional contest at London’s ExCel Arena on December 9.

Amir Khan will take on former European lightweight title challenger Laszlo Komjathi in Belfast on May 20.

Amir Khan will face his first American opponent as a professional when he has his seventh paid fight at Glasgow’s Braehead Arena next month.