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Vijay Singh, who earlier this year admitted to taking a banned substance, will not face any sanctions after the World Anti-Doping Agency (WADA) determined that the use of deer antler spray is no long considered prohibitive.

How will the PGA Tour handle Vijay Singh's fate after his admission of unknowingly using a banned substance? One thing seems certain: Don't expect answers quickly, ESPN.com's Bob Harig writes.

Hall of Fame golfer Vijay Singh said Wednesday he was unaware that a substance he was taking is banned by the PGA Tour.

After a report quoted Vijay Singh as admitting to using a banned substance -- deer-antler spray that contains IGF-1 -- will he face a suspension?

Vijay Singh, a member of the World Golf Hall of Fame, has been linked among other athletes to a banned substance, according to Sports Illustrated.