Tiger Woods out of charity event

The back spasms that bothered Tiger Woods throughout the Barclays tournament outside of New York have forced him to withdraw from a charity event Wednesday, according to tournament organizers.

Woods was scheduled to play an 18-hole exhibition as part of the Notah Begay III Foundation Challenge in upstate New York, with Begay -- a former PGA Tour pro who played golf with Woods at Stanford -- quoted in a statement as saying, "the important thing for Tiger is to make sure he is 100 percent healthy and not risk further injuring himself."

Woods didn't reveal whether he would play in this weekend's Deutsche Bank Championship outside of Boston, the second of four FedEx Cup playoff events on the PGA Tour.

In a statement, Woods expressed his regret for having to miss Begay's event.

Begay said Monday night that Gary Woodland will replace Woods in the field Wednesday at Turning Stone Resort.

Woods, who tied for second Sunday at the Barclays, a stroke behind winner Adam Scott, was in obvious pain over the closing holes. He fell to his knees on the par-5 13th after hitting his second shot, one that found a water hazard. A bogey followed, and he appeared out of the tournament until two late birdies and a near-miss at the 18th denied him a chance in a playoff.

Earlier in the week, Woods had played just nine holes during the Wednesday pro-am, saying he had an issue with a soft hotel mattress. Woods also had lower back problems during the final round of the PGA Championship.

The Deutsche Bank Championship -- which benefits Woods' foundation, among other charities -- does not begin until Friday. Unless he opts out and agrees to other sponsor commitments, he would be part of the pre-tournament pro-am Thursday.

If Woods is able to play, he will be grouped with Scott and Open Championship winner Phil Mickelson -- they are first, second and third, respectively, in the FedEx Cup standings -- for the first two rounds of the event.

Woods had to miss the AT&T National, another event that supports his foundation, two months ago because of an elbow injury.

Information from The Associated Press was used in this report.