1. Celtics v. Nets
Christmas Day will be the third face-off for these two teams, and Brooklyn has the advantage. Taking the first two wins, the Nets have beaten the Celtics at home and on the road, and while Deron Williams, Joe Johnson and Brook Lopez all showed up for their first meeting to take the game, it was the fight-turned-brawl between Kris Humphries and Rajon Rondo during their second match-up that grabbed the most attention between these Atlantic Division rivals. Let’s hope these two don’t visit the ghost of game fight's past.