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49ers Confirm Nick Bosa Tore his ACL

San Francisco 49ers star pass rusher Nick Bosa was carted off the field with a torn left ACL Sunday against the New York Jets.

San Francisco 49ers star pass rusher Nick Bosa was carted off the field Sunday against the New York Jets with a torn ACL, an MRI confirmed on Monday.

Bosa was injured in the middle of the first quarter when, as he was being driven to the ground on a run play, his leg buckled and turned.

Bosa wasn't the only one to be carted off the field. Solomon Thomas joined him shortly after. The depth at defensive line is thinning out so quickly. Thomas also missed the remainder of the game with a knee injury, per the 49ers.

The 49ers must now go on without Bosa, which does not bode well for the overall pass rush. San Francisco was already missing Dee Ford on the other side. If there was any way for the pass rush to have massive success this season, it was going to be behind the back of Bosa.

Now that he's out for the season, all of the pressure on the success of the pass rush rides on the highest-paid player on the defense: Arik Armstead.

Bosa, 22, tore his right ACL as a senior in high school. And then as a junior at Ohio State, he tore a groin muscle. So he came to the 49ers with injury concerns. But he always has been solid when healthy. In 2019, he recorded 9 sacks in the regular season, 4 sacks in the postseason and won the Defensive Player of the Year Award.

Kerry Hyder most likely will replace Bosa in the starting lineup.