Probably like 1-4 weeks. Not bad. But since I'm an athlete I will have to wear a knee brace for awhile. (12-18 months) and probably all next wrestling season so my knee doesn't pop out of place, but once you tear your ACL your knee is pretty much f**cked for life. sucks man, i cant play any sports that have pivot motions in them like football or w.e, and sports where you have to accelerate and decelerate speed in intervals, like track cause my knee won't be able to handle it for awhile. probably wont be playing any baseball for like 3-4 years. but since im a junior in high school im probably done with baseball for life.