you need to see a sports medicine specialist . two possibilities are there
1. getting a quadriceps muscle tear it will need evaluation for the extent of tear . plan the rehab accordingly . though you have passed the phase of acute knee flexion strapping to reduce haematoma
. if done acutely if you could have been diagnosed as muscle tear its a good way to get the athlete back on field faster .once a haematoma sets in then three weeks will be needed to get back to sports .
2. some more serious knee ligament or meniscus injury
. the minute an orthopaedic surgeon with interest in sports medicine sees you he can diagnose the trouble and help you in progression, as to what to do further .
so get yourself evaluated