After an all-time series, it's only right that the Oklahoma City Thunder and Denver Nuggets will fight it out in a Game 7. The entire NBA world will clear its calendars for Sunday afternoon as both teams get two days to prepare.

The Oklahoma City Thunder and the Denver Nuggets face off in game seven of the Western Conference second round

The Nuggets are going into Oklahoma City for a colossal Game 7 against the Thunder on Sunday (1:30 p.m. MT). The winner advances to the Western Conference Finals to face the Minnesota Timberwolves. The loser enters the offseason. Here are three keys to the winner-take-all playoff game, which will air on ABC.