SCOTTSDALE, Arizona (AP) ― Vijay Singh says he has used deer-antler spray and wasn’t aware that it may contain a substance banned by the PGA Tour.

The 49-year-old Fijian first revealed he used the spray in an interview with Sports Illustrated. The magazine said Singh paid one of Sports With Alternatives To Steroids’ owners $9,000 last November for the spray, hologram chips and other products.

The magazine also reported Baltimore Ravens linebacker Ray Lewis sought help from SWATS in his recovery from a torn right triceps.

The company says its deer-antler substance contains a banned performance-enhancer connected to human growth hormone.

Singh released a statement Wednesday at the Phoenix Open. “While I have used deer-antler spray, at no time was I aware that it may contain a substance that is banned under the PGA Tour Anti-Doping Policy,” Singh said in the statement.

“In fact, when I first received the product, I reviewed the list of ingredients and did not see any prohibited substances. I am absolutely shocked that deer-antler spray may contain a banned substance and am angry that I have put myself in this position. I have been in contact with the PGA Tour and am cooperating fully with their review of this matter. I will not be commenting further at this time.”

PGA Tour spokesman Ty Votaw said the tour is “looking into the matter.” “I know that it’s obviously illegal, whatever it is,” Bubba Watson said. “It sounds like something I would never want near me. ... I don’t even know how you take deer-antler spray.

“It’s sad that people live and die by their sport and they have to, I guess, cheat and go around it and try to better themselves with deer-antler spray. I’m not just going to take something and ask questions later. I’m not going to take deer antler-spray and find out what it is later. ... I think we should check them for mental problems if they’re taking deer-antler spray. That’s kind of weird.”