Patellar tendonitis, generally known as jumper’s knee, influences the tendon connecting the kneecap for the shinbone. It's common between athletes including badminton players.  The 2 bundles cannot be independently recognized on MRI plus the PCL appears as intensely hypointense. The apex with the posterior cruciate ligament is prone to magic angle https://www.theorthopaedicandpainpractice.com/what-happens-if-i-injure-my-posterior-cruciate-ligament/