Great Britain's Alfie Hewett and Gordon Reid both recorded victories to set up a quarter-final meeting in the Australian Open men's wheelchair singles, before joining forces to reach the semi-finals of the doubles competition.
Defending champion Hewett took just 55 minutes to complete a 6-2 6-1 win over Japan's Takuya Miki, while Reid beat Australian wildcard Anderson Parker 6-3 6-2.
Hewett and Reid then began their pursuit of a seventh successive wheelchair doubles title in Melbourne by defeating Miki and Dutchman Tom Egberink 6-0 6-4.
The pair have won 18 of the past 23 Grand Slam titles in the doubles format.
They will face either second seeds Martin de la Puente and Stephane Houdet or Tokito Oda and Gustavo Fernandez for a place in the final.
Hewett won his second Australian Open singles title last year - his 10th Grand Slam singles title overall.
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Skupski and Johnson in doubles contention
Britain will also have two representatives in the semi-finals of the men's doubles event.
Sixth seeds Neal Skupski and American Christian Harrison won 6-2 6-3 against Czech pair Petr Nouza and Patrik Rikl.
Luke Johnson and Polish partner Jan Zielinski were 7-6 (7-5) 6-2 winners over fourth seeds Marcelo Arevalo, of El Salvador, and Croatia's Mate Pavic.
Skupski and Harrison will play third seeds Marcel Granollers of Spain and Argentina Horacio Zeballos for a final place, with Johnson and Zielinski taking on Australian wildcards Jason Kubler and Marc Polmans in the other half of the draw.
Andy Lapthorne and Gregory Slade were beaten in their respective quad singles first-round matches.
Lapthorne lost 6-4 7-5 to Turkish fourth seed Ahmet Kaplan, while Slade was beaten 6-1 6-3 by Brazilian qualifier Leandro Pena.
However, Lapthorne progressed to the quad doubles semi-finals alongside Australian Heath Davidson, achieving a 7-6 (7-1) 6-4 win against Chile's Francisco Cayulef and Argentine Gonzalo Enrique Lazarte.
