Tiger Woods

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Golfer Tiger Woods smiles at a news conference before a practice round of the Cadillac Championship golf tournament, Wednesday, March 5, 2014 in Doral, Fla. Three days after he withdrew in the middle of the final round at the Honda Classic with lower back pain, Woods returned to work at the Cadillac Championship by saying he feels better after a few days of constant treatment, and that he was good enough to try to defend his title. (AP Photo/Wilfredo Lee)

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Tiger Woods chips onto the green on the fifth hole during a practice round for the Cadillac Championship golf tournament, Wednesday, March 5, 2014, in Doral, Fla. Three days after he withdrew in the middle of the final round at the Honda Classic with lower back pain, Woods returned to work at the Cadillac Championship by saying he feels better after a few days of constant treatment, and that he was good enough to try to defend his title. (AP Photo/Wilfredo Lee)

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Golfer Tiger Woods gathers his balls as he putts on the fifth hole during a practice round in the Cadillac Championship golf tournament, Wednesday, March 5, 2014 in Doral, Fla. Three days after he withdrew in the middle of the final round at the Honda Classic with lower back pain, Woods returned to work at the Cadillac Championship by saying he feels better after a few days of constant treatment, and that he was good enough to try to defend his title. (AP Photo/Wilfredo Lee)

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Golfer Tiger Woods hits out of a sand trap on the eighth hole during a practice round of the Cadillac Championship golf tournament, Wednesday, March 5, 2014 in Doral, Fla. (AP Photo/Wilfredo Lee)

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Donald Trump, left, shakes hands with Tiger Woods during a ribbon cutting for the new Tiger Woods Villa at the Trump National Doral golf course, Wednesday, March 5, 2014 in Doral, Fla. (AP Photo/Wilfredo Lee) ** FILE **

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Golfer Tiger Woods, right, and his caddie Joe LaCava look over the fifth hole during a practice round in the Cadillac Championship golf tournament, Wednesday, March 5, 2014, in Doral, Fla. Three days after he withdrew in the middle of the final round at the Honda Classic with lower back pain, Woods returned to work at the Cadillac Championship by saying he feels better after a few days of constant treatment, and that he was good enough to try to defend his title. (AP Photo/Wilfredo Lee)