I was really working on serves and made the mistake of serving too many at 100% over about 4 days throughout the week. Now when I try to serve my arm feels a bit tender. It may be worth noting I use the Wilson BLX Blade Tour which has a stifness rating of 70 which im sure doesn't help. Groundstrokes feel fine though. No sore arm or anything. The pain seems to come from my shoulder and through my arm a bit while serving. So my question is should I stop playing completely till my arm gets better? Or will I be alright to continue playing, Just without serves? Playing High School tennis mid february and not looking for any preseason injury. Any help would be greatley appreciated!