The anterior collateral ligament (ACL) and medial collateral ligament (MCL) are two of the four main ligaments that help stabilize the knee. The other two are the posterior cruciate ligament or PCL ...

Arsenal forward Gabriel Jesus will have an operation on his left knee after sustaining an anterior cruciate ligament injury. Jesus, 27, was taken off on a stretcher during Sunday's FA Cup third ...

LCL tears are graded similarly to other ligament tears on a scale of I to III: Grade III LCL tears commonly occur alongside other injuries to the knee, most especially tears and sprains of the ...