Boxer protects his house

A while back there was an old retired boxer in his home relaxing minding his own business. He was watching tv at the time when he heard a noise in the garage. He then got up and walked toward the garage and when he opened the door he saw a strange man holding a knife. The man was planning to rob him. When the man saw he attacked the boxer and the boxer retaliated by punching him and then taking him the floor. He then proceeded to beat him till he had the chance to call the police he then kept him pinned down and waited for the police.