Former World No 1 golfer Vijay Singh has admitted using deer antler spray, but says he was unaware the extract contained an insulin-like growth factor that is banned by the PGA Tour.
Vijay Singh survived an early battle with American Will MacKenzie and a late charge by Australia's Adam Scott to take control of the Mercedes-Benz Championship on Saturday.
Ireland's Padraig Harrington picked up his first PGA Tour title on the second hole of a playoff at the $5.5 million Honda Classic in Florida on Sunday.
Vijay Singh inched to within 3.08 points of Woods following his victory in the Pebble Beach National Pro-Am.
The American stays at number two in the official world rankings but trails world number one Vijay Singh by just 0.76 points.
The 40-year-old Fijian has inched to within 2.14 points of world number one Tiger Woods in the rankings.
Tiger Woods equalled Byron Nelson's 54-year-old PGA Tour record of 113 consecutive cuts but it is Vijay Singh who leads the Funai Classic.