• Glenn Cullen and Paul Johnson

The toughest assignment in men's tennis - Rafael Nadal on clay - looms next for Nick Kyrgios after a breezy win by the Australian at the Madrid Open on Thursday.

For the second year in a row Romanian star Simona Halep has knocked Australia's Samantha Stosur out of the Madrid Open.

Australia's Samantha Stosur has charged into the third round of the Madrid Open with a comfortable 6-3 7-5 win over Colombian world No.98 Mariana Duque-Marino.

Motivated more than usual, Eugenie Bouchard used her game to send a message to Maria Sharapova by defeating the Russian 7-5, 2-6, 6-4 in a thrilling second-round match at the Madrid Open.

• Tales Azzoni

Motivated more than usual, Eugenie Bouchard used her game to send a message to Maria Sharapova by defeating the Russian 7-5 2-6 6-4 in a thrilling second-round match at the Madrid Open.

Rafael Nadal has asked to begin his participation in the Madrid Open a day later than planned due to an ear infection, meaning he will face Italian Fabio Fognini on Wednesday.

Marin Cilic warmed up for this month's French Open by capturing his first claycourt title in five years.

​Maria Sharapova set up an intriguing second-round clash with outspoken critic Eugenie Bouchard in the Madrid Open by seeing off Croatian Mirjana Lucic-Baroni 4-6 6-4 6-0 on Sunday.

Novak Djokovic has announced he has split from his long-term coaching team, saying he needs to "find the winning spark on the court again".

Former champion Maria Sharapova's hopes of playing at this year's Wimbledon championships could hinge on a June 20 meeting of tournament organisers unless the Russian hits form in forthcoming events in Madrid and Rome.

Much-maligned Bernard Tomic has achieved something he hasn't managed to do since 2012 - win back-to-back ATP tour matches on clay.

Bernard Tomic fought back from a set down to win his opening match at the Istanbul Open.

Maria Sharapova's first tournament since her controversial return to tennis ended is over after she lost to Kristina Mladenovic of France in the Stuttgart Grand Prix semi-finals.

• Simon Briggs

Ilie Nastase has delivered a partial apology for his disgraceful behaviour during last weekend's Fed Cup tie in Constanta, but continued to claim that he had been pushed over the edge by the conduct of his British opponents.

Stuttgart: Maria Sharapova's comeback from a 15-month doping ban continued at the Porsche Grand Prix with a straight sets victory while Laura Siegemund delighted home fans to progress.

• Simon Briggs

​It has been a week of tennis drama, backlit by Ilie Nastase's sexist rants and Maria Sharapova's dubious wild cards. With claims and counter-claims flying around the ether, we might have expected Nick Kyrgios - Australia's serial controversialist - to pop up with a fiery outburst of his own.

Maria Sharapova declared herself "way above" responding to Eugenie Bouchard after recording the second win of her comeback to reach the quarter-finals of the Stuttgart Grand Prix.

Lleyton Hewitt is backing Nick Kyrgios as a French Open dark horse capable of causing serious carnage at Roland Garros.

• Simon Briggs

It took 15 minutes for Sharapova to win her first game but she gradually improved her service, started attacking Vinci's and clinched the first set after an hour.

Andy Murray has advanced to the third round of the Barcelona Open without playing a stroke after opponent Bernard Tomic withdrew on Wednesday.

• Simon Briggs

Just over a year later, the use of meldonium is no longer the primary issue. But a new sense of discontent has grown up around the red-carpet ride provided by those wild cards.

Serena Williams has launched a stinging attack on Ilie Nastase, accusing the Romanian Fed Cup captain of racially abusing her and her unborn baby and hurling sexist abuse at her fellow female tennis players.

Not much fazes Roberta Vinci after 16 years on tour but the maelstrom swirling around her opening match in Stuttgart against Maria Sharapova will test even the Italian's vast experience.

• UPDATED

Ilie Nastase was unrepentant about his Fed Cup tennis expulsion and doesn't care what punishment he receives.

Australia are in the box seat after day one of their Fed Cup World Group II play-off tie against Serbia, taking a 2-0 lead following singles wins to Ashleigh Barty and Daria Gavrilova on Saturday.

The International Tennis Federation (ITF) has launched an investigation after home captain Ilie Nastase was sensationally thrown off the court, leading to the suspension of Great Britain's Fed Cup play-off against Romania.

• Benjamin Millar

Notorious former tennis star Ilie Nastase is back in hot water after apparently making a racist comment about Serena Williams' pregnancy.

Margaret Court doubts motherhood will deny Serena Williams the all-time singles record but younger, hungry opponents may.

In a week when there has been plenty of talk about Australian values, Ashleigh Barty and her Fed Cup teammates will be keen to show some in their World Group II play-off tie against Serbia.