49ers' Nick Bosa 'Most Likely' Has Torn ACL After Being Carted Off vs. Jets

San Francisco 49ers defensive end Nick Bosa suffered what is "most likely" a torn ACL after being taken off in a cart Sunday against the New York Jets.

49ers head coach Kyle Shanahan relayed word on the injury to reporters after San Francisco's 31-13 win.  

Bosa was immediately ruled out by the 49ers, and it was not the last major blow to the defense, as Solomon Thomas was later carted off with an injury. Shanahan said that also may be a torn ACL, but needs further examination.

Bosa dealt with a muscle injury in his leg before the season started, though he appeared in all 16 games as a rookie and helped lead the 49ers to the Super Bowl, where they lost to the Kansas City Chiefs. 

He finished that campaign as a Pro Bowler and the Defensive Rookie of the Year after tallying 47 tackles, nine sacks, one interception, two fumble recoveries and one forced fumble.

Bosa's presence helps every level of the defense; his tendency to draw double-teams opens up blitzing lanes for his fellow linemen and linebackers, while the secondary doesn't have to cover wide receivers for as long with him generating pressure up front.

It will be difficult to replicate that impact while he is sidelined, but the 49ers will likely turn toward the combination of Arik Armstead and Kentavius Street at defensive end until he is ready to return.