Nick Kyrgios claims he was threatened by opponents’ coach

Nick Kyrgios has attracted raucous support in Melbourne (Andy Brownbill/AP)

Nick Kyrgios has claimed he was threatened by the coach and trainer of his doubles opponents at the Australian Open on Friday.

Kyrgios and his good friend Thanasi Kokkinakis pulled off one of the results of the tournament so far by defeating top seeds Nikola Mektic and Mate Pavic in the second round of the men’s doubles.