I know exactly what you went through, late 1st half of Boy's JV game (1st of JV/Varsity doubleheader) strained/pulled my groin. Luckily I was able to just keep moving so that it didn't tighten up on me. I was also scheduled to do 3 varsity tournament games the next day, luckily taking ibuprofen before going to sleep and before the games helped loosen me up a little and then once I was working the games it was fine. However, I don't suggest playing in a BBall game with a pulled muscle, I did that Wednesday and had a girls varsity and JV game Thursday and struggled a little bit at times.