Djokovic and Federer took tennis to extraordinary new levels before the Serbian prevailed in an enthralling semi-final at the Australian Open.

Tennis is one of those sports that looks lonely. Golf, cricket and tennis have an air of individualism that relies on strength of character.

Match-fixing has been suspected in at least four matches played at New Zealand's premier tennis tournament over the past five years. The

Gael Monfils is out of the Australian Open but he still put on a show in his quarter-final defeat.

Andy Murray was effective in the open air and devastating after the Rod Laver Arena roof was closed as he stormed to a four-set win.

WATCH: He's the last person you'd expect to deliver a brutal sledge.

Following Andy Murray's 'Get off the phone' call during his latest Australian Open win, the Herald looks back on some of the great tennis tantrums.

Scot loses his cool and unleashes tirade of abuse at member of his own entourage.

The spectre of alleged match fixing in tennis has again reared its ugly head at the Australian Open after betting was suspended on a mixed doubles clash.

Major sports betting site suspends betting on a doubles match at the Australian Open.

Australian Daria Gavrilova says sorry after throwing epic tantrum.

Djokovic struggled past Gilles Simon in five sets to reach his 27th straight Grand Slam quarterfinal at the Australian Open.

The third-round Australian Open match featuring Ana Ivanovic was stopped after the Serb's coach collapsed in the stands.

All those who said 'put up the names of tennis players involved in match fixing or shut up' - give yourselves a swift uppercut, writes Paul Lewis.

Kris Shannon won't let this week's tennis match fixing scandal hamper his enjoyment of the game.

Australia's newest tennis star had an unfortunate slip of the tongue after her thrilling upset over the No.28 seed.

Temperamental Nick Kyrgios has accused the umpire of losing control of his rollercoaster four-set loss to ice-cool Czech Tomas Berdych.