Dublin

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United States' Tiger Woods watches the 17th hole with his girlfriend Lindsey Vonn during the four-ball matches at the Presidents Cup golf tournament at Muirfield Village Golf Club Thursday, Oct. 3, 2013, in Dublin, Ohio. (AP Photo/Darron Cummings)

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Overall leader Michael Matthews, of Australia, center, takes the start of the third stage of the Giro d'Italia, Tour of Italy cycling race, from Armagh, Northern Ireland, across the border to Dublin, Ireland, Sunday May 11, 2014. (AP Photo/Marco Alpozzi)

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Overall leader Michael Matthews, of Australia, left, and Maarten Tjallingii, of The Netherlands, Marteen, wait for the start of the third stage of the Giro d'Italia, Tour of Italy cycling race, from Armagh, Northern Ireland, across the border to Dublin, Ireland, Sunday May 11, 2014. (AP Photo/Gian Mattia D'Alberto)

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Overall leader Michael Matthews, of Australia, left, and Marcel Kittel, of Germany, wait for the start of the third stage of the Giro d'Italia, Tour of Italy cycling race, from Armagh, Northern Ireland, across the border to Dublin, Ireland, Sunday May 11, 2014. (AP Photo/Gian Mattia D'Alberto)

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United States team player Tiger Woods, right, smiles with girlfriend Lindsey Vonn after U.S. won the Presidents Cup golf tournament at Muirfield Village Golf Club Sunday, Oct. 6, 2013, in Dublin, Ohio. (AP Photo/Darron Cummings)