B-Man
Just recovered from this myself. I play football (English) and ended up with a referral to a specialist because I had played on too long with it.
Initially for the first few months it was single leg, shoeless balances, which progressed into a squat until I felt the pain. The focus was on arch of foot positions and knee tracking. As I progressed I also used to do single leg eccentric lowers off a small step focusing on glutes being fully activated and knee tracking over middle toe. So to so this stand on a small step, facing forward lower your free leg off the front of a step until toe touches the floor and stand back up. Then do this to the side, then do this behind you. (The behind one used to kill me!)
Glute bridges holds, double legs then on to single leg once this became too easy.
Lunges 15 forward, 15 sideways, 15 diagonal.
Propreoception excercises, standing on one leg with the other leg go around an imaginary clock on the floor, 12, 3, 6, 9, back to 12 then back round the other way. Reaching as far in front as it comfortable. Focusing on arch not collapsing and glutes contracting.
I also had a specific heel raised squats. Find a step around an inch or 2 high and put your heels on it ball of your foot on the floor (like wearing heels!) keeping your glutes activated and back vertical (as in a front squat lower to 90 degrees. The tempo would be arounf 4 second eccentric - 1 second concentric. The slower the better. It started body weight and then prgressed to me using the base of an aerobics step under the smith machine and upping the weight everytime I could complete 3 sets of 15 reps.
I have also started recently doing front squats with my heels raised, I really feel this on my injured knee. I initially started with just the olympic bar and then on weekly will increase the weight 2.5 kgs every week until I am happy.
I foam rollered IT TFL and quads initially and have worked on my quad, hipflexor, adductor and glute flexibility a lot.
My BIGGEST bit of advice, don’t rush this. I did and didn’t rehab it properly and after 18 months and just starting to see light at the end of the tunnel.
Good luck .