After winning for the eighth time this season at the 84 Lumber Classic last weekend, Singh returned to his Ponte Vedra Beach home. Once there, he found the house without power and water in the wake of Florida's fourth hurricane of the year, Hurricane Jeanne.
As a result of the condition of his house, Singh decided to remain home.
Singh's win at the 84 Lumber extended his lead in the official World Golf Rankings to two points over former No. 1 Tiger Woods and boosted Singh's 2004 earnings to $9,455,566, a PGA Tour record.
Ironically, Singh donated the $100,000 he won for being the third-round leader to the hurricane relief effort.
The WGC-American Express Championship is an elite field with just 68 players remaining for this week. Prior to Singh's withdrawal, four other players in the top-40 in the world had withdrawn from the event.
Phil Mickelson, world No. 4, and Kenny Perry, No. 17, pulled out of the event last week. Earlier on Monday, Mike Weir, the seventh ranked player, and John Daly, No. 37, had withdrawn. Weir backed out with flu-like symptoms and Daly pulled out due to a foot injury.