Argentina's Juan Martin Del Potro lifts the trophy after winning the Davis Cup final in Zagreb, Croatia, Sunday, Nov. 27, 2016. Argentina defeated Croatia 3-2 in the Davis (AP Photo/Darko Vojinovic)

WELLINGTON, New Zealand (AP) — Former U.S. Open champion Juan Martin del Potro will attempt to extend his remarkable comeback in 2016 when he launches the 2017 season at Auckland’s ASB Tennis Classic in January.

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