I have 'golfers elbow'. I have never plaid golf in my life nor tennis. I, when my elbow hurts I wear an adjustable band around my arm just above my elboe.. Rx'd by my physican. It works. Please consult your Doctor before trying anything like this I do't sleep in it and don't wear it full time. After wearing a couple of days I may be able to go months w/o it. I bought the one I have on now at Walmart.