When Chris awoke from his coma after losing his 2nd boxing match. Greg tells him that Mike Tyson beat James "Bonecrusher" Smith by 10 round decision. This was a championship fight in 1987 so a decision would be at least 12 rounds.
During his 2nd boxing match Chris is fighting Julio the champion. Chris starts losing and Greg says "Get out of the way Rock! Get out of the way". Greg is not referring to Chris by his last name Rock. Greg is imitating Mickey Goldmill who was Rocky's trainer in the first 3 Rocky movies starring Sylvester Stallone as Rocky and Burgess Meredith as Mickey.