Australia Open

For evidence, look no further than the shenanigans surrounding Novak Djokovic and his attempted participation in the Australian Open tennis championships.

Instead of challenging for a record-breaking 21st Grand Slam title in Melbourne, Serbia's biggest sporting star found himself in the slammer, after immigration officials found fault with his paperwork.

His country's president, Aleksandar Vucic, led the chorus of outrage in Belgrade, following a phone call with the incarcerated ace.

The world number two won the match in Melbourne 6-3 6-7 (5-7) 6-2 6-3.

With Murray's compatriot Johanna Konta reaching the last four in the women's draw earlier today, Britain has two representatives in the semi-finals of a grand slam for the first time since 1977.

It is the sixth time Murray has advanced to the semi-finals of the tournament.

He was forced to scrap for almost every point but finally subdued his eighth seed rival after three hours and 20 minutes of gruelling baseline tennis in Rod Laver Arena.