Vijay Singh withdraws from Phoenix Open (Yahoo! Sports)

[ASFN Admin]

SCOTTSDALE, Ariz. (AP) -- Vijay Singh withdrew from the Phoenix Open on Thursday, a day after saying he used deer-antler spray and was ''absolutely shocked'' that it may contain a banned substance.

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[Southpaw]

Another case of someone ingesting/injecting something into their body and not having a clue what it is. Trial and error methodology?