Jakub Mensik hits arguably the best shot of the tournament, Thanasi Kokkinakis proves sportsmanship is alive and Alexander Zverev is not interested in a barber. Here's the five quick hits from day four of the Australian Open.

Draper battles hostile crowd, struggling Djokovic takes medical timeout - Jacob Fearnley is out after a straight-sets defeat to Alexander Zverev before Jack Draper takes on Australian favourite Aleksa

Six British players have reached the second round of the Australian Open for the first time as Fearnley and Draper look to go further

Aleksandar Vukic is through to the third round of the Australian Open after coming from behind to defeat American Sebastian Korda in five sets.

Naomi Osaka was happy after gaining 'revenge' over Karolina Muchova to reach the third round of the Australian Open. She lost to her Czech rival in straight sets at the US Open but came back from a set down in Melbourne to win 1-6 6-1 6-3.

Both Kyrgios (strained abdominal muscle) and Kokkinakis (right shoulder trouble) came into the match dealing with physical issues.

Nick Kyrgios' return to the Australian Open is over after he and Thanasi Kokkinakis stopped playing while trailing in the second set of their first-round doubles on Thursday night. Kyrgios and Kokkinakis,

Draper takes on Australian favourite Aleksandar Vukic while Djokovic leads Tomas Machac despite taking a medical timeout

Novak Djokovic and Carlos Alcaraz are a win away each from setting up a blockbuster Australian Open quarter-final at Melbourne Park.

Novak Djokovic came back from going a set ... Meanwhile at the John Cain Arena, Jack Draper has conceded the first game to Thanasi Kokkinakis but he's struck back on his own serve to level at ...

Spaniard Carlos Alcaraz is planning on leaving Australian with a permanent memento, but there is one big condition behind his pledge to get a tattoo of a kangaroo