Mickelson, No. 4 in the world ranking, is the third player in the top 50 to pull out of the $7 million World Golf Championship event. Kenny Perry (No. 16) and Nick Price (No. 35) also withdrew.
Mickelson said two weeks ago at the Canadian Open, when he signed with Callaway, that he planned a busy fall schedule with the American Express, Las Vegas, one of the Florida tournaments and the Tour Championship.
But he has not played well in the two tournaments since his great run through the majors -- second at the U.S. Open, third at the British Open, tied for sixth at the PGA. Mickelson was a combined 144 under par in his first 16 tournaments this year, but played the last two in 12 over (tied for 43rd at the NEC Invitational, tied for 57th at the Canadian Open).
Perry wanted to spend time at home. Joy Eldridge, a spokeswoman for Price, said the three-time major champion did not want to leave his home in Jupiter, Fla., with uncertainly over Hurricane Jeanne. She said Hurricane Frances earlier this month caused minor damage to Price's property.
'Now with Jeanne, he just doesn't feel comfortable leaving his family at home,' Eldridge said.
Price has never missed a World Golf Championship except for the 2001 Match Play Championship, which was played over the holidays in Australia.
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