Top seeds Henri Kontinen and John Peers dismissed home favourites Matthew Ebden and John Millman 6-4, 6-3 on Wednesday to advance to the semi-finals of Brisbane International presented by Suncorp.
Kontinen/Peers, who won the Nitto ATP Finals doubles title in November, struck seven aces and broke four times to advance in 60 minutes. They will next meet Grigor Dimitrov and Ryan Harrison, who squeaked past another Aussie team in Nick Kyrgios and Matt Reid 7-6(2), 7-6(3).
A third semi-final spot was secured by Wesley Koolhof of the Netherlands and New Zealand's Artem Sitak, who beat American Steve Johnson and Gilles Muller of Luxembourg 7-6(6), 7-5. In first-round action, second seeds Marcelo Demoliner of Brazil and New Zealand's Michael Venus beat Nicholas Monroe of the U.S. and John-Patrick Smith of Australia 4-6, 6-3, 10-5.