Broncos running back Phillip Lindsay has been ruled out for Sunday’s game at the Los Angeles Chargers.

It will be the fourth game the third-year pro has had to miss this season, after he topped 1,000 yards rushing in his first two seasons. Lindsay (hip, knee) has carried the ball 118 times for 502 yards and one touchdown while splitting time in the backfield with Melvin Gordon III. However, it’s been tough sledding for Lindsay of late, as he’s gained just 108 yards on his last 45 carries over the past four contests.

The 26-year-old running back, who will be a restricted free agent this offseason, missed three games earlier with toe, concussion, and knee injuries. He will have one more chance to return this season in Week 17 when the Broncos (5-9) host the Raiders.