The OKC Thunder, the No. 1 seed in the Western Conference, and the Denver Nuggets, the No. 4 seed, face off in a second-round NBA playoffs series.

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.

Jamal Murray played through an illness to score 25 points as the Nuggets beat the Thunder 119-107 Thursday night in Game 6 of the Western Conference semifinals at Ball Arena in Denver.