Against what was a weakened Colombian Davis Cup side, they did what they needed to do to perfection. De Minaur eased past Daniel Galan 6-3, 6-2; to brush away any potential shock; after the World Number 193 took David Goffin, World Number 11 to three sets.
Kyrgios earlier also proved too much for Alejandro Gonzalez; who is ranked 468th in the world despite a valiant effort from his opponent, it ended 6-4, 6-4.
Despite that, Gonzalez himself was a late inclusion to the line-up for the well-known Santiago Giraldo; who was rested.
In addition, they then wrapped up a 3-0 win when doubles pair John Peers and Jordan Thompson defeated world number one pairing Robert Farah and Sebastian Cabal 6-3, 3-6, 8-6; they will next face Belgium tomorrow with victory guaranteeing their progression to the next round.
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