Seeking to become the oldest winner in PGA Tour history, 52-year-old Vijay Singh racked up seven birdies with his cross-handed putting style.
Vijay Singh is determined to make a mark in the inaugural Fiji International tournament.
Deer antler spray reportedly has IGF-1 which aids in muscle growth. It is banned by major pro sports.
Defending champion Kyle Stanley, 2011 winner Mark Wilson and 2010 champion Hunter Mahan also are entered in the January 31-February 3 event along with Rickie Fowler, Nick Watney, Carl Pettersson, Nicolas Colsaerts and Lucas Glover.