WASHINGTON: American Lamont Peterson stunned Britain's Amir Khan on Saturday, winning a majority decision to take the International Boxing Federation and World Boxing Association light-welterweight world titles.

Referee Joe Cooper took two points from Khan during the bout for shoving Peterson and they proved to be the margin of his defeat.

One judge saw Khan a 114-111 winner while the other two judged Peterson the victor by scores of 113-112, giving him the triumph. (AFP)