San Francisco 49ers star defensive end Nick Bosa's season is over with a torn ACL, multiple outlets reported Monday.

Bosa underwent testing after hurting his right knee during Sunday's victory over the Arizona Cardinals. Imaging showed a clean tear of the ligament, per ESPN.

The five-time Pro Bowl selection was injured in the first quarter while being double-teamed during an Arizona pass play. His knee bent awkwardly as he fell to the ground and he did not return to the contest, giving a thumbs down on his way to the sideline medical tent.

Bosa, 27, had two tackles and a forced fumble before departing. He has two sacks and 17 tackles in three games this season for the 49ers (3-0).

Bosa is in his seventh season with San Francisco. He was the Defensive Player of the Year in 2022 when he

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