Djokovic puts Serbia on top

Novak Djokovic helped put Serbia in a strong position at the end of the first day of their Davis Cup World Group first-round tie with Belgium.

The world number one needed just one hour and 39 minutes to defeat Olivier Rochus 6-3 6-2 6-2, which gave the visitors a 2-0 lead after Viktor Troicki had battled from two sets down to win the opening singles rubber 1-6 3-6 7-6 (7/5) 6-4 6-4 against David Goffin.

It was honours even after the opening day in Geneva between Switzerland and defending champions the Czech Republic.

Stanislas Wawrinka got the hosts off to a flying start with a 6-4 6-3 6-4 victory over Lukas Rosol, but Tomas Berdych levelled things up by seeing off world number 289 Henri Laaksonen 6-3 6-2 6-7 (5/7) 6-1.

France will also take a 2-0 lead into day two against Israel after Jo-Wilfried Tsonga and Richard Gasquet won their singles rubbers in Rouen.

World number eight Tsonga was given a test by Amir Weintraub, ranked 199, but eventually prevailed 6-3 6-3 4-6 7-5, and Gasquet followed that up with a much more comfortable 6-3 6-2 6-2 triumph over Dudi Sela.

Tsonga said on "I played well. I was not really in difficulty. But, anyway, he played good tennis at this moment and it's good for him.

"I was at the same place as him before. I know when you play against a better player you always play your best tennis because you don't have a choice."

Kazakhstan were in control against Austria after two straight-sets singles wins on day one in Astana.

Andrey Golubev overcame Andreas Haider-Maurer 7-6 (7/2) 6-3 7-6(7/5) and then Evgeny Korolev beat Jurgen Melzer 7-6 (7/4) 6-3 6-2.