Jelena Jankovic replaces Ana Ivanovic to become the 18th womens world No.1 in the history of the sport

World No.4 David Ferrer lost in the first round of the Olympic tennis event, but there were wins for Rog,

There were no upsets in Cincinnati or Washington on Monday as Maria Kirilenko and Tommy Haas both won.

Will the women's Olympic final be another all-Williams affair? It's a possibility after both won in Beijing on Tuesday

Bad day at the office for Marion Bartoli as she pulls out of her first round match in Cincinnati with

It looks like another Roddick-Del Potro final is on the cards in Washington DC after the other big names lost

Roger Federer, Rafael Nadal and Novak Djokovic all comfortably won third round matches in Beijing on Wednesday.

Can anyone stop Juan Martin Del Potro? The Argentine is into the quarters in Washington after his 16th consecutive win.

The American has failed to recover from the knee injury that has blighted her return, and misses out on her

Nadia Petrova enjoyed an easy passage in Cincinnati on Wednesday but Maria Kirilenko was pushed all the way.