Golfer Vijay Singh said Tiger Woods supremacy will continue to go unchallenged unless players stop admiring the American and get themselves up to his standard.

Woods, 32, has won six consecutive tournaments and has talked of completing the season unbeaten.

Singh, preparing for Johnnie Walker Classic in India, said it's up to them to play well and beat Woods.

Singh was the last player to hold the world number one mantle before it was recaptured by Woods in March 2005.