Australian golf legend Greg Norman says golf's anti-doping procedures are "disgraceful" and blood testing needs to be introduced as soon as possible.
"You only have to look at what happened to Vijay Singh just recently to know the drugs issue is there," Norman told The Australian newspaper.
Singh acknowledged in an interview with Sports Illustrated in January that he had used deer antler spray, which contains a muscle-building hormone banned by the PGA Tour. It can be discovered only by blood tests.
"How deep it is (the problem), I have no idea because we only do urine analysis instead of blood testing," Norman said. "If you really want to be serious about it and find about what's really going on, we need to do blood testing. I think it's disgraceful, to tell you the truth. The golf associations have to get together and step it up.
"It's a pinprick for a player and you find out what's going on. If you're the head of golf or any sport, if you're the commissioner for a sport, it's your responsibility to make sure your sport is clean. ... That should be your No. 1 priority."
Norman, who has built a handful of successful businesses including his own golf clothing label, was back in his home country this weekend for his golf-course design work.
"Any sportsman or sportswoman who uses an outside agency to improve their skills is cheating," Norman said. "It sickens me. They're putting a black eye on their sport. If a sport gets itself clean, the corporate dollars will always be there because people will know it's a sport they can trust. The rest will take care of itself."