<P> Lightning convinces Razor to forgive Sally . He also finds out Razor is blind in one eye . A fight could cause permanent damage, so Lightning and Sally both implore Razor to call it off . At first he agrees, enraging Kid, but ultimately Razor explains that he needs to do this, Kid having cost him what he loved most, boxing and Sally . </P> <P> Kid takes his grandson Trey to celebrate the news that the Grudge Match is sold out . B.J. believes they're going to a movie, but Kid takes the child to a bar, then leaves him on his own while hooking up with a groupie . Trey ends up accidentally starting Kid's car while he's in the backseat having sex . Kid prevents an accident, but he is arrested, and B.J. is infuriated that he endangered the boy . Kid apologizes to B.J. and gives him a scrapbook that he kept of B.J.'s sports career in school, proving he hadn't been uninterested in him throughout the years . B.J. forgives him . </P> <P> The Grudge Match arrives, televised and packed . Kid gains the upper hand, severely beating Razor by unknowingly exploiting his blind eye . Upon learning of Razor's condition, however, Kid stops focusing on the eye and helps Razor to his feet . Razor turns the fight to his favor, but likewise helps Kid on his feet after nearly knocking him out . The fight ends and the judges decide it on points . Razor is declared the winner by a very close split decision . He celebrates with Sally and Lightning, while a satisfied Kid enjoys the company of B.J. and Trey, who are proud of what he has accomplished . </P> <P> In a post-credits scene, Razor has a new TV, on which he and Lightning view a performance by Kid on Dancing with the Stars and quickly deduce that he's having sex with his partner . In another, Slate tries to set up another grudge match between Mike Tyson and Evander Holyfield . Holyfield refuses several increasingly higher offers to fight Tyson before showing interest when Slate offers Holyfield a role in a fourth Hangover film . Tyson, frustrated by this, approaches Slate angrily before the scene ends . </P>

Who wins at the end of grudge match