Vijay Singh has no one to blame but himself. Apparently he agrees. Ostensibly that is why he said Wednesday that he is "angry" for unwittingly having taken a banned substance. In turn, he left himself open to a possible PGA Tour suspension.
Singh not only violated the tour's anti-doping policy, he violated one of the tour's most important unwritten tenets: When there might be an inkling of doubt, don't be in doubt.
That applies to the Rules of Golf or the drug policy. Call an official. Ask for clarification. Get a ruling.
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In Singh's case, he admitted to using deer-antler spray, which contains a banned substance called insulin-like growth factor, or IGF-1, which is said to contain an anabolic hormone that stimulates muscle growth.
Singh violated another simple principle: Read.
That idea should have been rammed home to players after Dustin Johnson didn't realize he was in a bunker at the 2010 PGA Championship d...