Stefanos Tsitsipas believes it won't be long before he wins a grand slam title after his triumph at the season-ending ATP Finals.

Raven Klaasen and Michael Venus leave London with 800 ATP Doubles Rankings points

The revamped Davis Cup format making its debut this week is fantastic for tennis, said Andy Murray

Stefanos Tsitsipas was crowned ATP Finals champion on Sunday

Barcelona defender Gerard Pique hopes players and fans have "the week of their lives" when a radically changed Davis Cup takes place in Madrid.

Eighteen nations will gather in Madrid's La Caja Magica on Monday as the men's tennis season culminates with a revamped Davis Cup.

Greece's Stefanos Tsitsipas will face Austrian Dominic Thiem for the season-ending ATP Finals title after battling past Roger Federer on Saturday.

Former world number four and Wimbledon runner-up Tomas Berdych has announced his retirement from tennis.

Stefanos Tsitsipas stunned favourite Roger Federer to reach the final on his debut at the ATP Finals.

Rafael Nadal had just beaten rising Greek force Stefanos Tsitsipas in a classic scrap at the ATP Finals

Kevin Anderson will make his return to a South African tennis court for the first time since 2011

Tim Henman was chosen by British former world number one Andy Murray

Roger Federer lit up the O2 Arena with a dazzling 6-4 6-3 defeat of Novak Djokovic to hand the Serb an early ATP Finals exit.

Matteo Berrettini became the first Italian to win a match in ATP Finals history on Thursday

Rafael Nadal looked beaten as 23-year-old debutant Medvedev broke serve twice in the decider

The duo earned their place by beating Lukasz Kubot and Marcelo Melo on Tuesday