Brett Favre and Aaron Rodgers
These days Rodgers claims he loves Favre but that wasn’t true when they were teammates. They became bitter enemies because Rodgers replaced Favre as Green Bay’s starter. Favre became furious after the Packers opted to focus on the younger quarterback. It didn’t help that Favre kept teasing his own retirement and had injury problems.
Meanwhile, Rodgers didn’t appreciate the way Favre acted toward him. It disappointed him when the legend refused to teach him and left him without guidance. In the end, it didn’t matter because Rodgers developed into an all-time great. But these two men didn’t want to have anything to do with each other (via Zone Coverage).