Former world number one Maria Sharapova has revealed she failed a drugs test at the Australian Open. The Russian, 28, tested positive for meldonium, a substance she has been taking since 2006 for health issues. Sharapova, a five-time Grand Slam champion, is provisionally suspended from 12 March pending further action. "I did fail the test and take full responsibility for it," said Sharapova, who won the Wimbledon title as a 17-year-old in 2004.

Betting worth billions. Elite players. Violent threats. Covert messages with Sicilian gamblers. And suspicious matches at Wimbledon. Leaked files expose match-fixing evidence that tennis authorities have kept secret for years. By Heidi Blake and John Templon.

Secret files exposing evidence of widespread suspected match fixing at the top of world tennis, including at Wimbledon.

Williams is the first individual woman to be selected to the honor since track champion Mary Decker in 1983.

The Serbian tennis star knows what it's like to live through war.

Big Ball Tennis is the new sport taking the tennis world by the balls. Read how to play it, what equipment you need, and why you'll never want to play boring 'ol tennis again.

Top women’s player Billie Jean King, 29, beats Bobby Riggs, 55, a former No. 1 ranked men’s player. Riggs (1918-1995), a self-proclaimed male chauvinist, had boasted that women were inferior, that they couldn’t handle the pressure of the game and that even at his age he could beat any female player.

Flavia Pennetta beat fellow Italian Roberta Vinci to win her first Grand Slam title at the US Open, and then announced her retirement. Pennetta, the 26th seed, won 7-6 (7-4) 6-2 to become only the second Italian woman to win one of the tennis majors. She then said: "I make a big decision in my life - this is the way I like to say goodbye to tennis."

Tennis has been called the game of inches, of kings, of poets, of love, of errors, of endurance, of a lifetime. But those are mostly metaphors. Really, tennis is the game of spin. Watch Novak Djokovic send arcing yellow streaks from beyond his baseline to the bleeding edge of his opponent’s backcourt. Watch Rafael Nadal’s ground strokes cross a foot or more above the net, then drop like tactical bombs to the competition’s ad corner.

Serena Williams's hopes of securing a calendar Grand Slam are ended with a shock US Open semi-final defeat by Roberta Vinci.

Nick Kyrgios has to do something about his behaviour after his sledge against Stan Wawrinka. The good will is evaporating. The excuses that can be proffered are running woefully short.

Defending champion Novak Djokovic saw off seven-time champion Roger Federer in four sets to win his third Wimbledon and ninth Grand Slam title. The Serb, 28, won 7-6 (7-1) 6-7 (10-12) 6-4 6-3 to overtake the likes of Jimmy Connors, Andre Agassi and Ivan Lendl in the all-time list of major winners. Federer, 33, had hoped to become the first man to win Wimbledon eight times. The Swiss won a thrilling second set tie-break but Djokovic came through to win in two hours and 56 minutes.

What's it like to stare down some of the fastest professional serves in tennis? See for yourself in this video.

Novak Djokovic beat Roger Federer to claim the men's Wimbledon title for the second straight year Sunday. The Serbian player and the tournament's No. 1 seed put in a 7-6, 6-7, 6-4, 6-3 match against No. 2 Federer, an effort broken up by a rain delay. In last year's matchup, it took Djokovic five sets to defeat Federer. The victory marks the 28-year-old's third Wimbledon title and ninth Grand Slam win.

Novak Djokovic beat Roger Federer in four sets to win his third Wimbledon championship.

Issues over self-acceptance among female tennis players persist, compelling many of them to avoid bulking up.

What we've learned on our way to the men’s final on Sunday. By Brian Phillips.

Serena Williams beats Spanish youngster Garbine Muguruza 6-4, 6-4 to claim her sixth Wimbledon ladies title and the second ‘Serena Slam’ of her career.

Here's how you can watch the women's finals between Serena Williams and Garbine Muguruza on Saturday.

This article analyses the results of 7,262 matches from the four major tennis tournaments to determine whether there is an advantage to serving first in the beginning and final sets of professional tennis matches.