FILE - In this April 19, 2013, file photo, Vijay Singh, of Fiji, tees off on the ninth hole while wearing an "Els for Autism" ribbon in his visor during the second round of the RBC Heritage golf tournament in Hilton Head Island, S.C. Singh no longer faces any sanction for using deer antler spray. The PGA Tour said Tuesday, April 30, 2013, that it was dropping the case against the three-time major champion. Tour commissioner Tim Finchem says new information from the World Anti-Doping Agency indicates that using deer antler spray is no longer considered prohibited. (AP Photo/Stephen Morton, File) (The Associated Press)
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PGA Tour Commissioner Tim Finchem appears during a news conference, Tuesday, April 30, 2013, in Charlotte, N.C. The PGA Tour dropped its doping case against golfer Vijay Singh on Tuesday based on new information from the World Anti-Doping Agency, which said using deer antler spray is no longer prohibited because it contains such small amounts of a growth hormone factor. (AP Photo/The Charlotte Observer, Jeff Siner) MAGS OUT; TV OUT; NEWSPAPER INTERNET ONLY (The Associated Press)
CHARLOTTE, N.C. – Vijay Singh has withdrawn from the Wells Fargo Championship, citing a sore back.
Singh pulled out of the tournament one day after the PGA Tour said it would not punish the 50-year-old Fijian for his admission that he used deer antler spray. The tour said the World Anti-Doping Agency informed it that spray contains only small amounts of a substance that is banned under the anti-doping policy.
The tour had been set to sanction Singh until WADA clarified its position on deer antler spray on Tuesday.