Hi,,,,
Thats an impressive X-ray! The medical term for your injury is an Apophyseal Avulsion Fracture of your Anterior Inferior Iliac Spine (AIIS). This is a result of one of your Quadriceps Muscles (called rectus femoris) pulling excessively on the bone.
You should be able to return to full sporting activity 6-8 weeks since the inury but do avoid excessive straining of the injury for at least 4 weeks.If you are still having some discomfort i would do a lot of stretching and strengthening exercises for your rectus femoris. Try lying on your front and pulling your heel towards up towards you. Hold the stretch for 30 seconds and repeat 3 times, do this three times a day. Also some straight leg raise exercises may help strenghthen it, lying on your back lift your heel about 20cm of the floor and hold for a bout 10-20 seconds, repeat 3 times a day.
In terms of a schedule for returning to sport it would be unsafe to give you an exact time to follow incase you over did it, however a phased return would be my recommendation, just go out and kick a ball gently and build up the amount you can comfortably do each week whilst trying the exercises mentioned above.
Let me know how you get on. Tom