Acupuncture

Hey Everyone! I am sharing my son's experience here. My son John is an outstanding football player. From the age of 8, he started playing football. Now he is 20. Every day he practices football without any fail. He has participated in many football tournaments and he is a champion too. But last week he got a sudden pain in his right knee. Because of the pain, he lost the chance to participate in a tournament. He was very much upset and the pain got severe within hours. So I decided to take him to a sports injury clinic. Treatments went on, but there was no change for his pain. He is not able to walk properly. Now my husband is suggesting to take him for the acupuncture services from Mississauga ( http://www.physionow.ca/services/acupuncture/ ). Is that a good option? How is it done? How much time will it take for a complete recovery?