Ali has revealed that he once worked the actor so hard that he “fell to his knees and I made him write Muhammad Ali’s name in the snow.”Darrell Foster, who trained former boxing champion Sugar Ray Leonard for 18 years and has coached a host of Hollywood stars including Woody Harrelson, Antonio Banderas and Eddie Murphy, has spoken to NME about the tough regime Smith endured in order to convincingly portray the iconic fighter.“I took Will up to 10,000 feet in Aspen, Colorado so he could