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| | Argentina's Juan Martin Del Potro serves the ball to Spain's Fernando Verdasco during their ATP World Tour Finals tennis match at the O2 Arena in London, Tuesday Nov. 24, 2009. (AP Photo/Kirsty Wigglesworth) |
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| | Argentina's Juan Martin Del Potro returns the ball to Spain's Fernando Verdasco, during their ATP World Tour Finals tennis match at the O2 Arena in London, Tuesday Nov. 24, 2009. (AP Photo/Kirsty Wigglesworth) |
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| | Argentina's Juan Martin Del Potro reacts during his ATP World Tour Finals tennis match against Spain's Fernando Verdasco at the O2 Arena in London, Tuesday Nov. 24, 2009. (AP Photo/Kirsty Wigglesworth) |
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| | Argentina's Juan Martin Del Potro reacts during his ATP World Tour Finals tennis match against Spain's Fernando Verdasco at the O2 Arena in London, Tuesday, Nov. 24, 2009. (AP Photo/Kirsty Wigglesworth) |
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| | Spain's Fernando Verdasco reacts during his ATP World Tour Finals tennis match against Argentina's Juan Martin del Potro at the 02 Arena in London, Tuesday, Nov. 24, 2009. Verdasco lost the match. (AP Photo/Sang Tan) |
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| | Spain's Fernando Verdasco returns the ball to Argentina's Juan Martin del Potro during their ATP World Tour Finals tennis match at the 02 Arena in London, Tuesday, Nov. 24, 2009. (AP Photo/Sang Tan) |
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