The letters "PGA" are a registered trademark, of course for the Professional Golfer's Association of America. Since your name more or less has 2 of the 3 words in it, it is infringing on their trademark. If you have another purpose for your name, you would be ok. Since your have Professionals spelled out, it would be hard to think you are referring to anything else but golf.
They may send you a letter telling you to stop using this name, or they may just watch what you do with the name. Also, you stated here already that you think it "may be worth alot". I would try to get a refund.