Fritz, 25, rose to his highest career ranking despite a surprise loss to Wu Yibing in the Dallas semi-finals.

Novak Djokovic reclaimed top spot in the ATP rankings released on Monday after winning his 22nd Grand Slam title at the Australian Open.

Novak Djokovic, who won a record-equalling 22nd Grand Slam title on Sunday, is driven on through controversy by his determination to be the greatest ever.

Novak Djokovic shrugged off controversy involving his father to reach a record-extending 10th Australian Open final with a 7-5 6-1 6-2 win over outgunned American Tommy Paul on Friday.

Facts and figures ahead of Friday's Australian Open men's semi-finals (x denotes seeding):

Novak Djokovic makes his eagerly anticipated return to the Australian Open on Tuesday and women's world number two Ons Jabeur will also launch her title bid.

 Five top contenders for the men's title at the Australian Open, which starts on Monday:

Novak Djokovic said he felt "emotional" following a warm reception from fans upon his return to Melbourne Park for a practice match against Nick Kyrgios on Friday.

Australian Open spectators were warned on Wednesday that they risk being ejected if they target nine-time champion Novak Djokovic.

Tennis fans gave Novak Djokovic a raucous welcome during his first match in Australia in almost two years when he made a rare doubles appearance at the Adelaide International on Monday.

Novak Djokovic said he wants his biggest rivals to be by his side when he brings the curtain down on his career, much like Roger Federer's emotional goodbye to the game last week.

Novak Djokovic paid tribute to his long-time rival Roger Federer on Friday, hailing the "incredible moments and battles" the pair shared on court.

Rafael Nadal set up a blockbuster French Open quarter-final against world number one Novak Djokovic on Sunday when he defeated Felix Auger-Aliassime in a five-set fourth round epic.

Top seed Novak Djokovic described his straight-sets opening win over Gael Monfils in Madrid on Tuesday as his "best performance of the year" as he set up a showdown with Andy Murray.

Many athletes are putting a brave face on the coronavirus lockdown, converting garages and bedrooms into home gymnasiums and posting cheerful videos of themselves on social media keeping fit by "bench-pressing" their children.

Rafael Nadal booked his semi-final spot at the Mexico Open by battling past Yoshihito Nishioka in straight sets, while top seed Novak Djokovic suffered another stunning exit in a shaky start to 2017.

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.

Novak Djokovic, well rested after not playing since Monday, resumes his US Open title defence against fiery Russian Mikhail Youzhny, a two-time semi-finalist in New York.

Novak Djokovic opens defence of his U.S. Open title with a laboured 6-3 5-7 6-2 6-1 win over Poland's Jerzy Janowicz that brings new concerns about the world number one's fitness.

Novak Djokovic and Rafael Nadal get their US Open campaigns under way Monday in the shadow of Arthur Ashe Stadium's spectacular $150 million retractable roof and alongside rock music legend Phil Collins.