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New York - Juan Martin del Potro reached the US Open third round on Thursday for the first time since 2012 in his injury-ravaged career.
Del Potro, the 2009 champion but now ranked 142 after a series of wrist surgeries pushed him to the brink of retirement, defeated American 19th seed Steve Johnson 7-6 (7/5), 6-3, 6-2.
The 27-year-old Argentine will face either David Ferrer of Spain or Italy's Fabio Fognini for a spot in the last 16.
Results from the fourth day of the 2016 US Open tennis championships at Flushing Meadows on Wednesday (x denotes seeded player):
Men
Second round
Dominic Thiem (AUT x8) bt Ricardas Berankis (LTU) 6-4, 6-3, 6-2
Pablo Carreo-Busta (ESP) bt Janko Tipsarevic (SRB) 3-6, 4-6, 6-1, 6-4, 6-4
Juan Martin Del Potro (ARG) bt Steve Johnson (USA) 7-6 (7/5), 6-3, 6-2
Nick Kyrgios (AUS x14) bt Horacio Zeballos (ARG) 7-5, 6-4, 6-4
Illya Marchenko (UKR) bt Damir Dzumhur (BIH) 6-2, 6-4, 6-3
Daniel Evans (GBR) bt Alexander Zverev (GER x27) 6-4, 6-4, 5-7, 6-2
Stan Wawrinka (SUI x3) bt Alessandro Giannessi (ITA) 6-1, 7-6 (7/4), 7-5
Kei Nishikori (JPN x6) bt Karen Khachanov (RUS) 6-4, 4-6, 6-4, 6-3
Nicolas Mahut (FRA) bt Paul-Henri Mathieu (FRA) 6-4, 6-4, 6-2
Ivo Karlovic (CRO x21) bt Donald Young (USA) 6-4, 7-6 (7/4), 6-4
Jared Donaldson (USA) bt Viktor Troicki (SRB) 7-5, 6-3, 6-3
Joao Sousa (POR) bt Feliciano Lopez (ESP x16) 6-2, 6-4, 1-6, 7-5
Grigor Dimitrov (BUL x22) bt Jeremy Chardy (FRA) 4-6, 6-4, 3-6, 6-4, 6-2
Paolo Lorenzi (ITA) bt Gilles Simon (FRA x30) 3-6, 6-2, 6-2, 6-7 (1/7), 7-6 (7/3)
Andy Murray (GBR x2) bt Marcel Granollers (ESP) 6-4, 6-1, 6-4
Women
Second round
Serena Williams (USA x1) bt Vania King (USA) 6-3, 6-3
Johanna Larsson (SWE) bt Denisa Allertova (CZE) 6-3, 6-1
Yaroslava Shvedova (KAZ) bt Wang Qiang (CHN) 6-0, 6-1
Zhang Shuai (CHN) bt Samantha Stosur (AUS x16) 6-3, 6-3
Carla Suarez (ESP x11) bt Jelena Jankovic (SRB) 6-1, 6-4
Elena Vesnina (RUS x19) bt Annika Beck (GER) 6-2, 6-1
Timea Babos (HUN x31) bt Richel Hogenkamp (NED) 6-2, 6-4
Simona Halep (ROM x5) bt Lucie Safarova (CZE) 6-3, 6-4
Agnieszka Radwanska (POL x4) bt Naomi Broady (GBR) 7-6 (11/9), 6-3
Caroline Garcia (FRA x25) bt Katerina Siniakov (CZE) 4-6, 6-4, 6-4
Ana Konjuh (CRO) bt Kurumi Nara (JPN) 6-3, 6-3
Varvara Lepchenko (USA) bt Timea Bacsinszky (SUI x15) 6-4, 4-6, 6-4
Karolina Pliskova (CZE x10) bt Montserrat Gonzalez (PAR) 6-1, 7-5
Anastasia Pavlyuchenkova (RUS x17) bt Kristina Mladenovic (FRA) 6-2, 4-6, 7-6 (7/5)
Laura Siegemund (GER x26) bt Nicole Gibbs (USA) 6-3, 7-5
Venus Williams (USA x6) bt Julia Goerges (GER) 6-2, 6-3
