The Oklahoma City Thunder will have to navigate the next couple of months without one of their key players.

Chet Holmgren is expected to miss between eight to ten weeks with a right knee injury, adding to a troubling string of injury news across the NBA early in the season. Oklahoma City was already braced to be without Jalen Williams and Cason Wallace for potentially the rest of the regular season. The Thunder said Holmgren began experiencing knee discomfort Sunday.

After discussions with multiple specialists, Holmgren underwent a biological treatment Friday for a small tear in his patellar tendon.

Wallace also had surgery Friday for a labral tear in his left shoulder. The surgery was performed in Los Angeles by Dr. Neal ElAttrache at the Cedars-Sinai Kerlan-Jobe Institute in Los Angeles with Thunder medical personnel present.

The guard will be evaluated again before the end of the regular season.

Williams sustained a broken left fibula and dislocated left ankle Sunday. The Thunder already said after his surgery he also would be evaluated again before the end of the regular season.

Earlier this week, ESPN reported that Minnesota Timberwolves superstar Anthony Edwards was expected to undergo an arthroscopic procedure to address discomfort in his right knee. The procedure is expected to sideline the three-time All-Star for up to two months.