Australian tennis star Thanasi Kokkinakis has stunned his opponent with an amazing act of sportsmanship at a critical moment of their second-round Australian Open clash. British No.15 seed Jack Draper was serving at two sets to one down, and trailing by a break in the fourth when he was about to be denied a certain point after a long rally.

Britain's Jack Draper is through to the last 16 of the Australian Open for the first time in his career after fighting back to beat Aleksandar Vukic.

The British No 1 has stood up to questions over his physicality and endurance by winning three five-set matches in a row