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.

As the Oklahoma City Thunder and Denver Nuggets prepare for Sunday's Game 7, one key character is at risk of being absent. Aaron Gordon was diagnosed with a hamstring strain that puts his status in doubt, per ESPN's Shams Charania.

"Denver Nuggets forward Aaron Gordon has been diagnosed with a left hamstring strain and his status is in doubt for Game 7 against the Oklahoma City Thunder," Charania reported. "Major development heading into Sunday's 3:30 pm ET game on ABC for a Western Conference Finals berth."