Australia's Davis Cup coach Wally Masur has plenty to think about ahead of Sunday's reverse singles rubbers against Kazakhstan.

Lleyton Hewitt and Sam Groth have kept Australia alive in their Davis Cup quarter-final tie against Kazakhstan.

Australia is 2-0 down in their Davis Cup tie against Kazakstan in Darwin. Lee Jeloscek reports.

19-year old Thanasi Kokkinakis is looking to get Aussies off to a winning start in the opening singles rubber of the Davis Cup quarter-final against Kazakhstan.