A hamstring tendon injury refers to damage or strain to the tendons located at the back of the thigh, which connect the hamstring muscles (biceps femoris, semitendinosus, and semimembranosus) to the pelvis and the bones in the lower leg.

Real Sociedad said tests showed a left biceps femoris injury, leaving Zubeldia a doubt for the Copa del Rey final in 27 days. The centre-back limped off at La Cerámica during the defeat to Villarreal.

Background Biceps femoris long head (BFlh) proximal aponeurosis (PA) size appears to be highly variable between individuals (Handsfield et al., 2010) and may not be proportional to muscle size and strength. Individuals with a relatively small aponeurosis ...