TRAINING THROUGH THE PAIN

A tearful Andy Murray on Friday announced he would likely retire this year due to severe pain from a hip injury, saying next week's Australian Open could be the last tournament of a glittering career.

Japanese star Kei Nishikori claimed his first title since 2016 when he downed Russia's Daniil Medvedev 6-4, 3-6, 6-2 in the final of the Brisbane International while Karolina Pliskova came from a set down to overhaul Ukraine's Lesia Tsurenko in the women's final on Sunday.

Roger Federer has become the most successful player in Hopman Cup history after leading Switzerland to a 2-1 win in an enthralling final of the mixed teams tournament in Perth Saturday.

World number one Novak Djokovic won another gruelling battle in Doha on Thursday to continue his unbeaten start to the year and progress to the Qatar Open semifinals.

Rafael Nadal on Wednesday withdrew from the season-opening Brisbane International after an MRI revealed a slight strain of his left thigh.

Rafael Nadal withdraws from the season-opening Brisbane International after an MRI revealed a slight strain of his left thigh.

Five-time Grand Slam champion Maria Sharapova had a tough start to her 2019 tennis season Monday at the Shenzhen Open, edging out Switzerland's Timea Bacsinszky 6-2, 7-6 (7/3).

Serena Williams overcame a sluggish start to win her opening match of the new season in Perth Monday, two weeks out from 2019's first Grand Slam.

Novak Djokovic admitted he'd be "lying" if overhauling Roger Federer's mark of 20 Grand Slam titles was not on his mind but insisted Saturday it will be a great challenge to get there, especially with the sport's widely-hyped young generation stepping up.

World number one Novak Djokovic wins a fourth Mubadala World Tennis Championship title on Saturday coming back from a set down to beat Kevin Anderson 4-6, 7-5, 7-5.

A new extreme heat policy that dictates when it is safe to play will be introduced at next month's Australian Open to better deal with frequent oven-like conditions on court.

Former world number one Andy Murray says he has no regrets about not walking away from tennis despite missing 11 months of the year with a hip injury.

It was a memorable year for sport in 2018, with the World Cup in Russia, a cricketing controversy and Serena Williams' bizarre outburst grabbing the headlines.

This week's ATP rankings are the year-end rankings, and they're historic: the Top 10 includes seven players age 30 or over, the most in the 45-year history of ATP rankings.

Alexander Zverev has proven himself as the best of tennis' new generation of men's players following his maiden ATP Finals triumph where he beat Roger Federer and Novak Djokovic in consecutive days, German great Boris Becker has said.

An inspired Alexander Zverev beat world number one Novak Djokovic 6-4 6-3 to win the ATP Finals on Sunday -- the biggest title of the German's fledgling career.

Alexander Zverev became the youngest champion at the ATP World Tour Finals in a decade on Sunday, stunning World No. 1 Novak Djokovic 6-4, 6-3 to lift the biggest title of his career.

Alexander Zverev beat Roger Federer 7-5, 7-6 (7/5) on Saturday to reach the title decider at the ATP Finals in a match that ended in confusion after a ball boy's fumble forced a point to be replayed.

Roger Federer gained sweet revenge over Kevin Anderson at the ATP Finals on Thursday but is putting thoughts of his 100th title to the back of his mind after both players reached the last four.