Olympics-Men's tennis singles first round results

LONDON, July 30 (Reuters) - The United States' Andy Roddick beat
Slovakia's Martin Klizan 7-5 6-4 in the first round of men's
tennis singles.

Results Table
Andy Roddick (U.S.) beat Martin Klizan (Slovakia) 7-5 6-4

13-Marin Cilic (Croatia) beat Juergen Melzer (Austria) 7-6(5)
6-2
Milos Raonic (Canada) beat Tatsuma Ito (Japan) 6-3 6-4

16-Richard Gasquet (France) beat Robin Haase (Netherlands) 6-3
6-3
5-Jo-Wilfried Tsonga (France) beat Thomaz Bellucci (Brazil)
6-7(5) 6-4 6-4
2-Novak Djokovic (Serbia) beat Fabio Fognini (Italy) 6-7(7) 6-2
6-2
4-David Ferrer (Spain) beat Vasek Pospisil (Canada) 6-4 6-4

15-Kei Nishikori (Japan) beat Bernard Tomic (Australia) 7-6(4)
7-6(4)
Jarkko Nieminen (Finland) beat Somdev Devvarman (India) 6-3 6-1

3-Andy Murray (Britain) beat Stanislas Wawrinka (Switzerland)
6-3 6-3
8-Juan Martin Del Potro (Argentina) beat Ivan Dodig (Croatia)
6-4 6-1
Gilles Muller (Luxembourg) beat Adrian Ungur (Romania) 6-3 6-3

Alex Bogomolov Jr. (Russia) beat Carlos Berlocq (Argentina) 7-5
7-6(5)
12-Gilles Simon (France) beat Mikhail Kukushkin (Kazakhstan)
6-4 6-2
Andreas Seppi (Italy) beat Donald Young (U.S.) 6-4 6-4

1-Roger Federer (Switzerland) beat Alejandro Falla (Colombia)
6-3 5-7 6-3
Malek Jaziri (Tunisia) beat Lu Yen-Hsun (Taiwan) 7-6(10) 4-6
6-3
Grigor Dimitrov (Bulgaria) beat Lukasz Kubot (Poland) 6-3
7-6(4)
Denis Istomin (Uzbekistan) beat 14-Fernando Verdasco (Spain)
6-4 7-6(9)
Julien Benneteau (France) beat Mikhail Youzhny (Russia) 7-5 6-3

11-Nicolas Almagro (Spain) beat Viktor Troicki (Serbia) 6-4
7-6(3)
10-John Isner (U.S.) beat Olivier Rochus (Belgium) 7-6(1) 6-4

Steve Darcis (Belgium) beat 6-Tomas Berdych (Czech Republic)
6-4 6-4
7-Janko Tipsarevic (Serbia) beat David Nalbandian (Argentina)
6-3 6-4
Philipp Petzschner (Germany) beat Lukas Lacko (Slovakia) 7-6(5)
6-1
Santiago Giraldo (Colombia) beat Ryan Harrison (U.S.) 7-5 6-3