Sources -- Nuggets' Aaron Gordon (hamstring) in doubt for Game 7 - ESPN

Denver Nuggets power forward Aaron Gordon has been diagnosed with a left hamstring strain and his status is in doubt for Sunday's Game 7 against the Oklahoma City Thunder, sources told ESPN.

Gordon exited Thursday's series-extending Game 6 win late in the fourth quarter after grabbing his hamstring.

Gordon, an essential part of the core from the Denver team that won the 2022-23 title, has been a force during the Nuggets' run this postseason. He is averaging career playoff highs of 16.8 points and 7.3 rebounds per game and has made several clutch plays.

The Nuggets are 5-0 this postseason when Gordon scores at least 20 points, and his seven assists in Game 6 are tied for the most in any game of his playoff career.

Gordon has hit a pair of game-winning shots this postseason — a buzzer-beating putback dunk in Game 4 against the LA Clippers and a 3-pointer with three seconds remaining in Game 1 against the Thunder. He also made an overtime-forcing 3 with 28 seconds remaining in regulation of the Nuggets' Game 3 victory over Oklahoma City.

Injuries limited Gordon, 29, to only 51 games during the regular season. He missed two extended stretches due to a right calf strain that Gordon is continuing to manage.