play tennis and my knee has been hurting for about 3 months. It is not bad and it doesn't hurt when I walk .It only hurts when I step down from something or when I hop on it or pick something up with...
I am 12 now and I have a chance to play tennis competitively but all tennis pro's started playing tennis at a younger age. Being a professional tennis player is my dream and I am ready to work hard...
