jobo
Grandmaster
well I've only got your word that the doctor in question didn't say let it heal properly before trying again, then build up the,strengh so it doesnt injured its,self so easily next time, And then if that doesn't work try strapping it, which is far more likely to be honestHence why I said.....If it is Patellar Tendinitis
Nothing macho about following instructions from Physical Trainers and Physicians.
the guys 16 and keen to get back to train HIS doctor has told him to rest it , your giving him a reason to ignore that and start training to soon , with your,dodgy internet,3rd hand medical knowledge