Sergey Brin is telling employees to stop making old products and start improving new ones. "For example, said Chief Executive Eric Schmidt, Google plans to combine its spreadsheet, calendar and word-processing programs into one suite of Web-based applications."

Uses Ajax and some other web2.0-ish features.

Dan Evans speaks to BBC Breakfast's John Watson before playing for Great Britain in the Davis Cup Finals group stage in Manchester.

Watch the best shots as Great Britain's Dan Evans beats Finland's Eero Vasa 7-6 (7-3) 6-2 in their opening Davis Cup tie.

Watch Argentina's Francisco Cerundolo as he hits an "incredible" drop shot against Great Britain's Jack Draper at the Davis Cup in Manchester.

An untimely net-cord winner sets Tomas Martin Etcheverry on his way to victory against Dan Evans in Great Britain's opening match against Argentina at the Davis Cup in Manchester.

Great Britain's Dan Evans wins a "ridiculous" point after an extraordinary rally against Argentina's Tomas Martin Etcheverry at the Davis Cup in Manchester.

Great Britain's Jack Draper smashes his racquet after losing the opening set against Canada's Felix Auger-Aliassime during their Davis Cup match in Manchester.

24-time men's Grand Slam champion Novak Djokovic says Jannik Sinner's doping case "is not helping tennis at all". Sinner, the men's world number one, was cleared of any wrongdoing after twice testing positive for low levels of clostebol - a steroid that can be used to build muscle mass - during the Indian Wells tournament in March. The World Anti-Doping Agency have appealed against the decision which said Sinner bore 'no fault or negligence' for the substance being in his system.

World number one Jannik Sinner says he is "surprised" by the World Anti-Doping Agency's appeal against the decision to clear him of blame after he twice tested positive for a banned substance.

Watch American Frances Tiafoe's furious outburst at an umpire following a 5-7 7-5 7-6 (7-5) defeat by Roman Safiullin at the Shanghai Masters.

Twenty years since he became the US Open boys' champion, Andy Murray is giving New York a miss and beginning retired life with a holiday in Spain.

BBC tennis correspondent Russell Fuller looks at the team and the sacrifices behind "absolute tennis keeno" Jack Draper's run to the US Open semi-finals.

In the build-up to the US Open, eventual men's champion Jannik Sinner was cleared of fault or negligence over two failed doping tests. Yet questions remain over the case.

Relive the 2008 Wimbledon men’s singles final between Roger Federer and Rafael Nadal.

News that Jannik Sinner, the men's world number one, had failed two doping tests stunned tennis. BBC Sport examines the key questions at hand.

BBC tennis correspondent Russell Fuller on Rafael Nadal's enduring rivalry with Roger Federer and his legacy in the tennis world.

Former Man Utd player Diego Forlan will make his professional tennis debut at the age of 45. This is how he has gone from football to the ATP Tour.

World number one Jannik Sinner praises Rafael Nadal after the Spanish legend announced he will retire from tennis later this year.

BBC Sport pays tribute to Rafael Nadal's incredible career and looks back at the 2008 Wimbledon final, after the 22-time Grand Slam winner announced he will be retiring at the end of the season.

As Rafael Nadal announces his retirement, BBC Sport looks back at the moment the Spaniard clinched his maiden Wimbledon title after an epic final against Roger Federer.

Novak Djokovic says he is shocked and overwhelmed by the news that his "greatest rival" Rafael Nadal will retire at the end of the season.

Jack Draper wins the biggest title of his career at the Erste Bank Open in Vienna as the British number one's breakout season reaches even greater heights.

Aryna Sabalenka continues her dominance over Zheng Qinwen with victory in the first match of the season-ending WTA Finals.

Elena Rybakina appoints fellow former Wimbledon champion Goran Ivanisevic as her coach from next season.

Great Britain's Katie Boulter reaches her third WTA final of the year with a 6-2 5-7 6-2 victory over China's Yue Yuan at the Hong Kong Open.

Aryna Sabalenka is looking to cap a superb year with a first WTA Finals triumph. Here's everything you need to know about the event - and cast your vote for the winner.

Germany's Alexander Zverev claims a straight-set win over home favourite Ugo Humbert to clinch his first Paris Masters title.