Andy Murray battles into the night to beat Thanasi Kokkinakis at Australian Open

Andy Murray (pictured) claimed an epic win over Thanasi Kokkinakis (Ng Han Guan/AP)

Andy Murray soldiered deep into the night to conjure another extraordinary win at the Australian Open.

Australian Thanasi Kokkinakis served for victory at 5-3 in the third set of their second-round encounter on a rowdy, partisan Margaret Court Arena only for Murray to show once again that his greatest asset is a stubborn refusal to lose.