Andy Murray has hailed his 'superb' year on tour, and insisted that he still has every chance of winning a Grand Slam. 

Britain's Andy Murray will play Juan Martin del Potro in the opening Group A round-robin match of the ATP World Tour Finals on Sunday. 

Some key facts and figures ahead of the ATP World Tour Finals at the O2 Arena in London. 

Roger Federer and Rafael Nadal will step on board the riverboat to the World Tour Finals with the world number one ranking in their sights. 

Juan Martin Del Potro has confirmed he will play the Aegon Championships at Queen's Club in London for the next three years. 

Svetlana Kuznetsova will launch her 2010 Australian Open campaign at the Sydney International. 

Eurosport-Yahoo! readers think Roger Federer will throw off his poor run of form to win the ATP World Tour Finals in London. 

Belgian tennis players Yanina Wickmayer and Xavier Malisse have launched appeals against their respective one-year doping bans. 

Roger Federer will face Juan Martin del Potro in the round-robin stage of the ATP Tour finals after getting a tough draw for London. 

Andy Roddick has pulled out of the ATP World Tour finals after failing to shake off a knee injury, with his place taken by Robin Soderling. 

Switzerland has long been on the lookout for the next Martina Hingis - but have they found her in Stefanie Voegele? 

Rafael Nadal has backed Andy Murray to one day claim a Grand Slam title. 

Next week's ATP World Tour finals at London's O2 Centre will be the biggest indoor tennis event ever staged, organisers have claimed. 

Guest blog: Rasheed on Monfils 

Top 10 duo Rafael Nadal and Fernando Verdasco have returned to the Spain side for next month's Davis Cup final against Czech Republic. 

Novak Djokovic lifted his first major title of 2009 when he beat 15th seed Gael Monfils 6-2 5-7 7-6(3) in the final of the Paris Masters. 

Novak Djokovic extended a brilliant run of form by outclassing Rafael Nadal 6-2 6-3 to advance to the Paris Masters final. 

In the second of our series of guest blogs, coach Eric Winogradsky looks to give some insight into the character of Jo-Wilfried Tsonga.