World number one Andy Murray insisted Sunday that Novak Djokovic will remain his biggest threat in 2017, as the pair prepare for a potential first clash of the season in Doha this week.

Former world No 1 Ana Ivanovic on Wednesday announced her retirement from tennis, admitting that the physical toll of the circuit had proved too much.

On-going fitness issues have forced Juan Martin del Potro out of next month's Australian Open and his planned warm up event in New Zealand, organisers of the Auckland Classic announced Saturday.

Two-time Wimbledon champion Petra Kvitova will need at least three months of rest after surgery to her left hand cut by a knife-wielding burglar on Tuesday, her spokesman said.

Next month's Australian Open will offer Aus$50 million (US$36.25 million) in prize money, with the men's and women's singles champions both netting a cool $3.7 million, organisers said on Wednesday.

Andy Murray was voted the BBC Sports Personality of the Year for a record third time on Sunday despite his wife telling him she was voting for one of his rivals.

World number two Novak Djokovic confirms that he has split from his coach Boris Becker after three years working together

Argentina's Davis Cup champions returned to a heroes' welcome in Buenos Aires on Tuesday after clinching their maiden title with a stunning 3-2 win over Croatia at the weekend.

Argentina lift their first Davis Cup title after Juan Martin Del Potro and Federico Delbonis win Sunday's reverse singles to complete the South American nation's spectacular comeback in a 3-2 victory over hosts Croatia in the final.

Andy Murray and Novak Djokovic will slug it out for the world number one ranking in a high-stakes final at the ATP Tour Finals after completing their contrasting paths to the dramatic showdown.

Andy Murray remains on course for a dramatic showdown with Novak Djokovic as the world number one staged a superb fightback to defeat Milos Raonic 5-7, 7-6 (7/5), 7-6 (11/9) in the semifinals of the ATP Tour Finals.

Andy Murray is braced for the tantalising prospect of facing Novak Djokovic in the final of the ATP Tour Finals with the world number one ranking on the line.

Novak Djokovic booked his place in the semifinals of the ATP Tour Finals with an emotional 7-6 (8/6), 7-6 (7/5) victory over Milos Raonic on Tuesday.

Novak Djokovic books his place in the semi-finals of the ATP Tour Finals with an emotional 7-6 (8/6), 7-6 (7/5) victory over Milos Raonic.

Andy Murray celebrates his rise to the top of the world rankings with a 6-3, 6-2 victory over Marin Cilic as the Scot makes a strong start to his bid to win the ATP Tour Finals.

Karolina Pliskova and Barbora Strycova clinched the Czech Republic's fifth Fed Cup title in six years on Sunday after beating France in the the deciding doubles rubber in Strasbourg.

Rishabh Sharda of India clinched the boys' singles title of the Walton 30th Bangladesh ITF Junior Tennis Championship beating

Fourth seed Rishabh Sharda of India and Chan Woo Park of South Korea reached the boys singles finals of the Walton 30th Bangladesh ITF Junior Tennis Championship yesterday.

Bangladesh's Afrana Islam Preeti lost against Xiaowei Hu of China in straight sets in the pre-quarterfinal of the Walton 30th

Top seed Katie Lafrance will start her campaign in the Walton 30th Bangladesh ITF Junior Tennis Championships today when she takes on India's Muskaan Ranjan in the girl's singles first round fixture at the National Tennis Complex in Ramna.