Late in the fourth quarter, first-round pick defensive end Mykel Williams went down with a right knee injury. Afterwards, coach Kyle Shanahan told reporters that they fear Williams injured his ACL. A torn ACL would sideline Williams for the remainder of the season.

Head coach Kyle Shanahan said that the team is worried about a torn ACL for rookie defensive end Mykel Williams after he was injured in Sunday’s 34-24 win over the Giants. Shanahan said the team expected to have a clearer picture of Williams’ condition on Monday.

Mykel Williams suffered a knee injury in the San Francisco 49ers' victory at the New York Giants on Sunday and coach Kyle Shanahan is worried the rookie edge rusher's season could be over. Shanahan said the fear after Williams went down with four minutes left was that it's a torn ACL.

San Francisco 49ers star rookie defensive end Mykel Williams may have suffered a season-ending ACL tear, the latest injury at MetLife.

Malik Nabers isn’t ghosting the Giants or in denial about his season being over. Tuesday marked one month since Nabers tore his ACL and the stud receiver still has not undergone reconstructive surgery, though it is supposed to happen soon.

Atlanta Hawks star Trae Young fortunately avoided an ACL injury despite leaving Wednesday's game against the Brooklyn Nets.

England forward Michelle Agyemang will miss the rest of the season after it was confirmed she suffered a ruptured anterior cruciate ligament (ACL) injury in Tuesday’s friendly with Australia.

Michelle Agyemang has the strength to reach her potential despite rupturing her anterior cruciate ligament (ACL), say her managers at Arsenal and Brighton.