Thanasi Kokkinakis says he suffered pectoral muscle injury "torture" in marathon Australian Open second-round defeat to England's Jack Draper.

A seething Thanasi Kokkinakis has described his ongoing pectoral muscle issues as “physical and mental torture” after losing a five-set epic at the Australian Open.

Jack Draper said the abuse he received during his thrilling five-set Australian Open comeback over home favourite Thanasi Kokkinakis inspired him to raise his level as the British No 1 reached the third round of the grand slam for the first time.

Thanasi Kokkinakis was warned for "bending the rules" as he called the physio during his marathon battle with Jack Draper in Melbourne.

Jack Draper conjured the spirit of Andy Murray to claw his way back from the brink of defeat against home favourite Thanasi Kokkinakis at the Australian Open. Two years ago, Murray famously recovered from two sets and a break down against Kokkinakis to win a second-round match that finished at 4.05am.

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.

British No. 1 Jack Draper came back from the brink of elimination to seal his spot in the third-round of the Australian Open with a 6-7 (7), 6-3, 3-6, 7-5, 6-3 win over Australian Thanasi Kokkinakis.