Tiger Woods pulled out of the Arnold Palmer Invitational late Tuesday afternoon because of his ongoing back pain. Here is the complete report from Associated Press Golf Writer Doug Ferguson: Tiger Woods withdrew from the Arnold Palmer Invitational on Tuesday because of persistent pain in his back, creating even more uncertainty for golf's No. 1 player with the Masters only three weeks away. And that's if Woods can even play in the Masters. "I personally called Arnold today to tell him that, sadly, I won't be able to play in his tournament this year," Woods said on his website."I would like to express my regrets to the Orlando fans, the volunteers, the tournament staff and the sponsors for having to miss the event. More...