Melbourne VIC, Australia, 2 March 2016 | AAP

Nick Kyrgios has arrived in Melbourne for this week’s Davis Cup tie against the United States, with Sam Groth placed on standby as the world No.27 battles a virus.

Australian coach Jason Stoltenberg confirmed Kyrgios would hit with his teammates on the Kooyong grass on Wednesday afternoon.

Groth – who will partner John Peers in Saturday’s doubles rubber – says he is ready to step in should either Kyrgios (back/hip/virus) or Bernard Tomic (wrist) be forced to pull out of Friday’s opening singles matches.

Watch the full interview with Stoltenberg and Groth below: