NPR's Michel Martin speaks with Dr. Christina Allen, the chief of Yale Sports Medicine and an ACL surgery specialist, about ...

Objective: Anterior cruciate ligament (ACL) injuries are the most common ligament injury in the United States. These injuries can be career ending for athletes and severely disabling for all ...

If you Google, “what’s the worst injury a basketball player can suffer,” those three letters, ACL, come up often. That’s because the ACL plays a big role in keeping the knee stable.

“Just unlucky,” head coach Jason Kidd said Monday before knowing the full extent of the injury. Irving suffered the torn ACL in the first quarter of Monday’s 122-98 home loss to the Kings ...