I’ve been a professional badminton player for a long time now and I have always had issues in the knees and legs.

I think I can focus the pain coming from the hip, more or less where the femur inserts in the hip; inside.

Maybe one of the contributing factors is that I really lack of internal rotation from the hip in my right leg. I mean, when I walk/run, my right leg is always facing a little bit to the right.

I don’t usually run ( I hate it ), but I usually swim and it’s fine.

I will watch those videos and work on them.

By the way, should I use the foam roller on my IT band?

Thank you