It is all in preparation for the movie Southpaw which will be released later this year. He had been training with former professional boxer Terry Claybon months before the shoot even began, who has been speaking about the process:
这些都是为了将于今年上映的电影《左撇子》所做的准备。开始拍摄之前的几个月,他就已经跟随前职业拳击手Terry Claybon训练,Terry Claybon对于训练过程讲到: