Tomas Berdych of the Czech Republic celebrates after defeating Rafael Nadal of Spain in their quarterfinal match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 27, 2015. (AP Photo/Rob Griffith)

Rafael Nadal is out of the Australian Open, beaten 6-2, 6-0, 7-6 (5) in the quarterfinals by seventh-seeded Tomas Berdych on Tuesday. The third-seeded Nadal , a 14-time Grand Slam singles champion, said before the tournament began that his lack of match fitness due to injuries and illness in the last half of 2014 made him unlikely to win more than a few rounds at Melbourne Park. Berdych led 5-2 and finally ended the match on his fourth match point when Nadal netted a return of serve.


Maria Sharapova of Russia celebrates after defeating Eugenie Bouchard of Canada in their quarterfinal match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 27, 2015. (AP Photo/Rob Griffith)

Five-time Grand Slam winner Maria Sharapova put the brakes on Eugenie Bouchard's quest for a first major title, beating the young Canadian 6-3, 6-2 Tuesday to advance to the Australian Open semifinals. In a match between one of the game's longtime stars and a rising talent, the No. 2-ranked Sharapova dominated on serve and took the ball early in an effort to keep points short against her 20-year-old opponent. The 27-year-old French Open champion is looking to win her first Australian Open since 2008. Sharapova has twice been a finalist in Melbourne, in 2012 and 2007.


Ekaterina Makarova of Russia celebrates after defeating Simona Halep of Romania in their quarterfinal match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 27, 2015. (AP Photo/Lee Jin-man)

Rafael Nadal has joined Roger Federer on the sidelines at the Australian Open, taking their combined 31 Grand Slam singles titles with them. On the women's side, second-seeded Maria Sharapova, who beat Eugenie Bouchard on Tuesday, and Ekaterina Makarova are still around and will play an all-Russian semifinal. Nadal's lack of match fitness from nearly six months of injuries and illness finally caught up with the 14-time major champion in his quarterfinal match against Tomas Berdych. The third-seeded Nadal said before the tournament that his inactivity over the last half of 2014 made him unlikely to win more than a few rounds.


Serena Williams of the U.S. celebrates a point won against Garbine Muguruza of Spain during their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 26, 2015. (AP Photo/Rob Griffith)

It was difficult to tell who was more pleased with reaching the Australian Open semifinals: No. 1-ranked Novak Djokovic, advancing to his 25th at a Grand Slam tournament, or 19-year-old Madison Keys, who beat Venus Williams to get into her first. The four-time champion, who has dropped his serve only once through five matches, lined up defending champ Stan Wawrinka on Friday. "I'm a self-critic, but tonight there was not much I could complain about," Djokovic said. I feel very good about my game at the moment." Keys overcame a left thigh injury to beat Venus Williams 6-3, 4-6, 6-4, and will next play a five-time Australian champ also named Williams - top-seeded Serena - on Thursday.


Novak Djokovic of Serbia celebrates after defeating Gilles Muller of Luxembourg in their fourth round match at the Australian Open tennis championship in Melbourne, Australia, early Tuesday, Jan. 27, 2015. (AP Photo/Lee Jin-man)

MELBOURNE, Australia (AP) -- Novak Djokovic reached his 23rd consecutive Grand Slam quarterfinal with a 6-4, 7-5, 7-5 win over Luxembourg's Gilles Muller at the Australian Open on Monday.


Madison Keys of the U.S. serves to her compatriot Madison Brengle during their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 26, 2015. (AP Photo/Andy Brownbill)

Madison Keys turns 20 next month and her mother, Christine, is already sending her teasing texts featuring grandma emojis. Love you.'' It's a good thing for Keys she's making the most of her last Grand Slam as a teenager, beating fellow American Madison Brengle 6-2, 6-4 in the battle of the Madisons at the Australian Open on Monday to reach the quarterfinals of a major for the first time. She may have been the younger player on the court - Brengle is five years older and was also playing for her first major quarterfinal - but Keys has looked increasingly comfortable as she's progressed deeper into the draw with her new coach, Lindsay Davenport, watching from the stands. The pressure has only increased with Serena and Venus Williams getting older and other young Americans such as Melanie Oudin and Sloane Stephens struggling to build on early successes and close the gap between the generations.


Kei Nishikori of Japan celebrates a point won against David Ferrer of Spain during their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 26, 2015. (AP Photo/Rob Griffith)

It's only been a couple of months since Kei Nishikori moved into the No. 5 ranking, and he's not yet comfortable with the number. Not that retirement is on his mind just yet.


Mike and Bob Bryan lost in the third round of men's doubles at the Australian Open on Monday, the second straight year the twin brothers have failed to reach the quarterfinals. The top-seeded Bryans lost to 14th-seeded Dominic Inglot of Britain and Florin Mergea of Romania 7-6 (4), 6-3, a new pair who began playing together in September. The Bryans have captured six of their 16 career Grand Slam doubles titles at the Australian Open - their most successful major. ''Up 4-1 in the first, usually that's a good position to be in for us,'' Bob Bryan said.

Milos Raonic of Canada stretches for a shot to Feliciano Lopez of Spain during their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 26, 2015. (AP Photo/Andy Brownbill)

MELBOURNE, Australia (AP) -- Big-serving Milos Raonic advanced to the Australian Open quarterfinals with a 6-4, 4-6, 6-3, 6-7(7), 6-3 win Monday over Feliciano Lopez of Spain.


Victoria Azarenka of Belarus dances on the court as she celebrates after defeating Caroline Wozniacki of Denmark during their second round match at the Australian Open tennis championship in Melbourne, Australia, Thursday, Jan. 22, 2015. (AP Photo/Lee Jin-man)

Victoria Azarenka is packing her bags and leaving the Australian Open far earlier than years past, but the two-time former champion sure had fun while she was here. Unseeded after an injury-marred season, Azarenka had the toughest draw of any of the top female contenders at Melbourne Park, yet she moved through three rounds with ease, not dropping a set to Sloane Stephens, Caroline Wozniacki or Barbora Zahlavova Strycova. On Monday, though, her run came to an end against 2014 finalist, Dominika Cibulkova, in a match filled with extended rallies, momentum shifts and impressive shot-making. It was Azarenka's earliest exit from the Australian Open since 2011, but rather than be disappointed, she looked at the upside.


Kei Nishikori of Japan makes a forehand return to David Ferrer of Spain during their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 26, 2015. (AP Photo/Lee Jin-man)

MELBOURNE, Australia (AP) -- U.S. Open finalist Kei Nishikori advanced to the Australian Open quarterfinals on Monday with a 6-3, 6-3, 6-3 win over No. 9-seeded David Ferrer of Spain.


MELBOURNE, Australia (AP) -- Madison Keys advanced to her first Grand Slam quarterfinal with a 6-2, 6-4 win over good friend and fellow American Madison Brengle in a battle of the Madisons at the Australian Open on Monday.

Stan Wawrinka of Switzerland leaps for a return shot to Guillermo Garcia-Lopez of Spain during their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 26, 2015. (AP Photo/Vincent Thian)

MELBOURNE, Australia (AP) -- Stan Wawrinka stayed in contention for a second consecutive Australian Open title with a 7-6 (2) 6-4, 4-6, 7-6 (8) win over Guillermo Garcia-Lopez on Monday to advance to the quarterfinals.