One of my friends on the team pulled her leg like that because her coach was stretching her the kneeling down way, where the coach stands behind you and pulls one leg up - she pulled too hard and her leg popped and she pulled something in her leg. It took like 1-2 months to be totally the same, and do all the skills she wanted including the piking skills like toe shoot, toe-on free-hip, etc. But yours could heal up fast, like even in a few days, it just might be a like tight-soar-hurt thing. The back of her upper leg would hurt even from sitting down.