AMIR KHAN was booed after he refused to commit to fighting Conor Benn. The Bolton boxer jumped into the ring after Benn demolished Chris van Heerden in Manchester on Saturday night. But Khan, who was hammered by rival Kell Brook, was in no mood to commit to another blockbuster fight. When Khan entered the ring all he would say was: “I am just here to enjoy the boxing. I’m a fan. I’m here to...