Australia have received a blow before their ATP Cup clash with Canada in Brisbane on Sunday after Nick Kyrgios pulled out with a back injury.
Australian No.2 Kyrgios has been replaced by John Millman, who will face Felix Auger Aliassime in the opening rubber.
World No.30 Kyrgios has been unable to back up after winning his singles clash in Australia’s 3-0 win over Germany at Pat Rafter Arena.