The knee injury that Raiders defensive end Malcolm Koonce suffered two weeks ago will sideline him for the rest of the season, a person with knowledge of the situation confirmed.

Koonce suffered the injury in the days leading up to the Raiders’ season opener against the Chargers. He is expected to undergo surgery next week.

Koonce, a third-round pick out of Buffalo in 2021, emerged last year as a productive pass rush with a career-high eight sacks.

The injury could not come at a worse time for Koonce, who is in the last year of his rookie contract.

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