"I can't speak to Gary's remarks," PGA Tour spokesman Ty Votaw said. "I can't disagree and I can't agree with him. They are his remarks that's he is free to make."
None of the top players concurred with Player.
"He knows two (players)? I know zero," six-time major winner Nick Faldo said. "Never heard of anybody."
Tiger Woods, who last year said he would like to see the PGA Tour begin drug testing as quickly as possible, was asked Tuesday if he would be surprised if a golfer tested positive for drug use.
"If anything, probably out here it would be testing positive for maybe being hung over a little bit," Woods said. "But that's about it. I know some guys have taken Medrol packs for inflammation in their wrists, but other than that, I really don't see anybody doing anything, or have heard anybody doing anything."
Phil Mickelson also said he thought golfers were clean.
"I don't think there's even a remote chance that will happen," he said of a golfer testing positive for steroids.
The R&A and USGA are the governing bodies for golf around the world, although both Dawson and USGA executive director David Fay have said that leaders of the professional tours should take the lead in developing a drug policy.
Player said he felt 50 to 60 percent of athletes in the world are using performance-enhancing drugs. When asked for a number of golfers, he estimated 10.
"I might be way out," Player said. "Definitely not going to be lower, but might be a hell of a lot more."