Taiwan's Lu Yen-hsun serves to John Isner of the U.S. in their singles final match at the Heineken Open tennis tournament in Auckland, New Zealand, Saturday, Jan. 11, 2014. (AP Photo/SNPA, David Rowland)

New Zealand Heineken Open Tennis

Taiwan's Lu Yen-hsun serves to John Isner of the U.S. in their singles final match at the Heineken Open tennis tournament in Auckland, New Zealand, Saturday, Jan. 11, 2014. (AP Photo/SNPA, David Rowland)

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