De Groot, who partnered compatriot Aniek van Koot to victory in yesterday’s doubles final at Melbourne Park against South Africa’s Kgothatso Montjane and Lucy Shuker of Britain, defeated her Japanese opponent 6-3, 6-7 (4-7), 7-6 (10-4).

The number one seed this year, De Groot has now won the Australian Open singles title on three occasions.

Alfie Hewett, who had successfully defended the men’s doubles title with fellow Briton Gordon Reid, was also hoping to add a singles title, but those hopes were ended by Joachim Gérard.

The Belgian earned the title with a 6-0, 4-6, 6-4 win, to earn a first Grand Slam singles title.

Home player Dylan Alcott, who won the quad doubles final with compatriot Heath Davidson yesterday, also completed a double as he followed up by earning his seventh successive singles title today with a 6-1, 6-0 win over Sam Schröder of The Netherlands.

In his post-match interview - in an arena empty due to COVID-19 restrictions - the 30-year-old who is also a top class wheelchair basketball player declared: "I don’t know how many more I’ve got left in me, but maybe I’ll have to do one more…"