UPDATE 9-Tennis-U.S. Open men's singles round 2 results

Sept 2 ( Gracenote) - Results from the U.S. Open Men's Singles Round 2 matches on Thursday Juan Martin Del Potro ( Argentina) beat 19-Steve Johnson (U.S.) 7-6(5) 6-3 6-2 6-Kei Nishikori ( Japan) beat Karen Khachanov ( Russia) 6-4 4-6 6-4 6-3 2-Andy Murray ( Britain) beat Marcel Granollers ( Spain) 6-4 6-1 6-4 Nicolas Mahut ( France) beat Paul-Henri Mathieu (France) 6-4 6-4 6-2 11-David Ferrer (Spain) beat Fabio Fognini ( Italy) 6-0 4-6 5-7 6-1 6-4 Daniel Evans (Britain) beat 27-Alexander Zverev ( Germany) 6-4 6-4 5-7 6-2 21-Ivo Karlovic ( Croatia) beat Donald Young (U.S.) 6-4 7-6(4) 6-4 Paolo Lorenzi (Italy) beat 30-Gilles Simon (France) 3-6 6-2 6-2 6-7(1) 7-6(3) Illya Marchenko ( Ukraine) beat Damir Dzumhur ( Bosnia and Herzegovina) 6-2 6-4 6-3 22-Grigor Dimitrov ( Bulgaria) beat Jeremy Chardy (France) 4-6 6-4 3-6 6-4 6-2 3-Stanislas Wawrinka ( Switzerland) beat Alessandro Giannessi (Italy) 6-1 7-6(4) 7-5 14-Nick Kyrgios ( Australia) beat Horacio Zeballos (Argentina) 7-5 6-4 6-4 Jared Donaldson (U.S.) beat Viktor Troicki ( Serbia) 7-5 6-3 6-3 Joao Sousa ( Portugal) beat 16-Feliciano Lopez (Spain) 6-2 6-4 1-6 7-5 Pablo Carreno (Spain) beat Janko Tipsarevic (Serbia) 3-6 4-6 6-1 6-4 6-4 8-Dominic Thiem ( Austria) beat Ricardas Berankis ( Lithuania) 6-4 6-3 6-2