Caroline Wozniacki of Denmark makes a backhand return to Victoria Azarenka of Belarus during their second round match at the Australian Open tennis championship in Melbourne, Australia, Thursday. Photograph: Lee Jin-man/AP

Caroline Wozniacki said she felt “cursed” at Melbourne Park after losing in straight sets to a resurgent Victoria Azarenka in the Australian Open sec(...)

Serena Williams is through to the second round of the Australian Open after she beat Belgium’s Alison Van Uytvanck in straight sets. (Photograph: William WestGetty Images)

Serena Williams was dragged into a second set scrap by unheralded Belgian Alison Van Uytvanck but put down the minor threat with some powerful serving(...)

Maria Sharapova of Russia reacts after beating  Ana Ivanovic of Serbia in the final of the Brisbane International. Photograph: Jason Reed/Reuters

Tennis round-up: US Open champion Marin Cilic has withdrawn from the Australian Open because of a shoulder injury, the world number nine said on Satur(...)

 Rory McIlroy’s profile reaching new heights, according to data analysis from Adoreboard.  Photograph:   Matt King/Getty Images

Rory McIlroy’s stellar form this year has seen his online popularity surpass three of the big global brands that sponsor him, a study finds.McIlroy en(...)

 Rory McIlroy  acknowledges the crowd on the 18th green after the final round of the  DP World Tour Championship at Jumeirah Golf Estates in Dubai. Photograph: Warren Little/Getty Images

Rory McIlroy will look to successfully defend the title which kick-started his resurgence at this week’s Australian Open in Sydney.Given the world num(...)

Rory McIlroy with Gillian Creevy, Cancer Fund for Children’s chief executive,  Caleb Overton (10) and Amy Uprichard (right) at the launch of Daisy Lodge, Cancer Fund for Children’s therapeutic short break centre in Newcastle, Co. Down. Photo: Brian Lawless/PA

The extent of Rory McIlroy’s youth is often lost in the analysis of his success. At Augusta National next April, the world’s No1 golfer will attempt (...)

Serena Williams of the US  poses with the championship trophy after defeating Caroline Wozniacki of Denmark to win the women’s final match of the 2014 US Open Tennis Championship at Flushing Meadows, New York, USA, yesterday. Photograph: Justin Lane/EPA

They did the cool thing, the classy thing, by bringing Martina Navratilova and Chris Evert out to embellish, or even to authenticate, the occasion of(...)

Serena Williams poses with the trophy after after defeating Caroline Wozniacki  to win the women’s  US Open title in New York. Photograph:  Streeter Lecka/Getty Images

Serena Williams rescued her season with a lopsided victory over Caroline Wozniacki to win her 18th Grand Slam title in a US Open final that flirted (...)

Shuai Peng: “I said, ‘No, no, no, I don’t want to give up’. I want to try one more time. And then I come back. I know I’m not going to stay maybe too long, but I just want to try, you know. I just wanted to challenge her one more time.” Photograph: Chris Trotman/Getty Images

For Caroline Wozniacki, watching her opponent being carried from the court in a wheelchair was not how she wanted to celebrate reaching the US Open fi(...)

Caroline Wozniacki of Denmark returns a shot against Shuai Peng of China during their women’s singles semi-final match on Day Twelve of the 2014 US Open. Photograph:  Mike Stobe/Getty Images for USTA

Five years after losing here to Kim Clijsters in her only slam final, the former world number one Caroline Wozniacki gets her second chance to win a m(...)