UFC women’s bantamweight champion Ronda Rousey in Melbourne ahead of her title fight against Holly Holm. Photograph: Paul Crock/Getty Images

The main boulevard in Sarajevo was ghostly quiet on Thursday evening and images of Ronda Rousey speaking on television were easily visible in the cafe(...)

Serena Williams has announced her withdrawal from next week’s China Open in Beijing and the WTA Finals in Singapore, ending her season. Photograph: Getty Images

World number one Serena Williams has opted to pull out of the WTA Finals and end her season early following a roller coaster campaign that has taken (...)

Flavia Pennetta  kisses the US Open trophy after beating fellow Italian Roberta Vinci  in the US Open 2015 women’s single final. Photograph: Kena Betancur/AFP/Getty Images

Storm clouds were gathering overhead and the wind was kicking up as Flavia Pennetta and Roberta Vinci walked off the court together, having played the(...)

Flavia Pennetta of Italy kisses the US Open trophy after defeating fellow Italian Roberta Vinci in their US Open 2015 women’s single final match at the USTA Billie Jean King National Center. Photograph: Getty Images

Flavia Pennetta won her first grand slam singles title over Roberta Vinci in an improbable all-Italian US Open final on Saturday then added one more s(...)

Roger Federer volleys a return in his semi-final with Stan Wawrinka at the  U.S. Open Tennis Tournament at Arthur Ashe Stadium in New York. Federer won, 6-4, 6-3- 6-1 and will face Novak Djokovic in the final. Photo: Chang W. Lee/The New York Times

The final of the 2015 US Open men’s singles will be contested between the best player of all time and the best player of this time when Roger Federer (...)

Serena Williams of the US leaves the court after being defeated by Roberta Vinci of Italy during their 2015 US Open Women’s singles semifinals match at the USTA Billie Jean King National Tennis Center in New York. Vinci won 2-6, 6-4, 6-4. Photo: Jewel Samad/Getty Images

There is not a sentient being in this city or any other who would have predicted that two Italians in their early thirties would contest the US Open w(...)

A tarp covers the court on Arthur Ashe Stadium as rain falls on Day Eleven of the 2015 US Open at the USTA Billie Jean King National Tennis Center. Photograph: Alex Goodlett/Getty Images

Serena Williams’ bid to reach the US Open final was put on hold as the women’s semi-finals were rescheduled due to rain. The forecast predicted rain a(...)

Serena Williams will face sister Venus on the quarter-finals of the US Open at Flushing Meadows. Photograph: Reuters

Serena Williams’ historic pursuit of the calendar grand slam was transformed into an emotionally supercharged family affair the world No1 could certai(...)

Serena Williams recovered from a set down to beat Bethanie Mattek-Sands in the third round of the US Open. Photograph: Reuters

Serena Williams and Marin Cilic both survived third round scares on Friday to keep their U.S. Open title defences on track but there was no escape for(...)

Serena Williams of the U.S. hits a return to Kiki Bertens of the Netherlands during their second round match at the U.S. Open Championships tennis tournament in New York. Adrees Latif/Reuters

If this were a fight, it might have been called off before a blow had been landed. But Kiki Bertens, a smiling, 23-year-old Dutch qualifier who looked(...)