Los Angeles Lakers star LeBron James is doubtful for Sunday’s home game against the Nuggets with a thoracic muscle strain, coach Frank Vogel announced Saturday.

James first sustained the injury, a pull in the rib cage area, against the Indiana Pacers on Tuesday and played through it during Thursday’s loss to the Milwaukee Bucks.

James didn’t require an MRI, but this is a significant issue and not just a load management situation, sources told ESPN.

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Earlier this week, James said he didn’t plan to miss any games this season for rest. James has also been dealing with a nagging groin issue recently, sources said. Last season a groin strain on Christmas Day derailed James and the Lakers’ season.

Although he has yet to miss a game, the Lakers have been managing James’ minutes this season as he’s averaging a career-low 34.8 per game. 

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