Australian Open doubles champion Thanasi Kokkinakis won a decisive singles rubber to power 28-time winners Australia through to the next stage of the Davis Cup Saturday where they were joined by fellow multiple champions Spain and France

Australian Davis Cup captains and players, led by Rod Laver united on Saturday to oppose proposed reforms to Davis Cup.

Just two years on from attaining his highest world ranking of 17, Tomic is currently 168th, with Davis Cup captain Lleyton Hewitt saying Monday he was doubtful the Australian would ever play for the team again.

Lleyton Hewitt replaced Sam Groth for Australia in Davis Cup tie against USA. But he and John Peers lost to Bob and Mike Bryan

Australia's Davis Cup captain Lleyton Hewitt has named Nick Kyrgios, Bernard Tomic, Sam Groth and doubles specialist John Peers in his team.

David Ferrer beat John Isner 6-4, 6-4, 7-5 in two hours, four minutes in the Australian Open pre-quarters at the Hisense Arena to set up his sixth appearance in the last eight.

Lleyton Hewitt called match-fixing allegations a "joke" and an "absolute farce" after an anonymous online blog linked his name to the explosive report which has overshadowed the Australian Open.

Using Lleyton Hewitt's nickname, Andy Murray christened the dog 'Rusty' in honour of one of his favourite players.

Lleyton Hewitt won two Grand Slams at Wimbledon and Flushing Meadows, and remains the youngest player to reach world number one at 20 years and eight months.

Lleyton Hewitt singles campaign came to an end after he was beaten by David Ferrer 6-2, 6-4, 6-4 in second round of the Australian Open.