Roger Federer keeps saying he's still on the comeback trail, but he's covering ground faster than he ever imagined.

Petra Kvitova has regained the use of her racquet hand badly injured three months ago in a knife attack but there is still no date for her return to tennis, her spokesman said on Monday.

Nick Kyrgios overpowered Novak Djokovic for the second time in as many weeks on Wednesday to book an Indian Wells quarter-final against Roger Federer, who swatted aside old foe Rafael Nadal.

Rafael Nadal and Roger Federer booked a mouthwatering fourth-round clash at the ATP Indian Wells Masters on Tuesday, where five-time champion Novak Djokovic also advanced from the "group of death".

Second seed Angelique Kerber put on a determined display to rally past France's Pauline Parmentier 7-5 3-6 7-5 in the scorching desert heat to reach the fourth round of the BNP Paribas Open on Monday.

Stan Wawrinka breezed into the fourth round of the BNP Paribas Open on Monday and saw another seed removed from his path to the final when lucky loser Yoshihito Nishioka of Japan turned his match against Tomas Berdych upside down.

Novak Djokovic launched his bid for a sixth ATP Indian Wells Masters crown with a two-set triumph over Kyle Edmund as the stars shone in the California desert.

The introduction of best-of-three set matches in the Davis Cup won't be enough to halt the drain of top talent from the 117-year-old world tennis tournament, Rafael Nadal said.

Five-time champion Novak Djokovic will be out to reassert his dominance on the hard courts of Indian Wells this week, seeking to shake off the slump that has dogged him into 2017.

Unseeded American Sam Querrey stunned second-seeded Rafael Nadal 6-3, 7-6 (7/3) on Saturday to win the ATP Mexico Open and end the Spaniard's run of perfection in Acapulco.

Andy Murray clinched his first title of 2017 and 45th of his career as he dominated Spain's Fernando Verdasco 6-3, 6-2 to win the Dubai Tennis Championships on Saturday.

Two-time champion Rafael Nadal rolled into the final of the ATP Mexico Open on Friday with a 6-1, 6-2 victory over Croatian Marin Cilic that extended the Spaniard's unbeaten record in Acapulco.

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.

Rafael Nadal bounced back from a break down in both sets to defeat Japan's Yoshihito Nishioka 7-6 (7/2), 6-3 and book a spot in the semi-finals of the ATP Mexico Open.

Former world number one Novak Djokovic was made to work hard before finishing strongly to defeat Martin Klizan in straight sets on his return to competition at the ATP Acapulco event on Tuesday.

Roger Federer showed few signs of rust after a month off following his Australian Open heroics in sending Benoit Paire packing at the Dubai Tennis Championships on Monday.

Austrian Dominic Thiem secured his eighth ATP title with a 7-5 6-4 win over Pablo Carreno Busta in the final of the Rio Open on Sunday.

Top-seeded Canadian Milos Raonic held off Juan Martin del Potro 6-3, 7-6 (8/6) on Saturday to book a title clash with Jack Sock at the ATP Delray Beach Open.

World number two Novak Djokovic will make his return from a shoulder injury at next week's ATP tournament in Acapulco, the Serb said on Friday.

Canadian top seed Milos Raonic advanced to the quarter-finals of the ATP Delray Beach Open on Wednesday by defeating Croatia's Borna Coric 6-3, 7-6 (7/2).