Naomi Osaka has sounded her Australian Open title intentions loud and clear, saving two match points in an impressive fourth-round comeback over fellow former No.1 Garbine Muguruza on Sunday.
Trailing a set and a break in the second, a break in the third and staring down match points at 4-5, the No.3 seed shifted up a gear to conjure up a 4-6 6-4 7-5 victory.
Between them, they have split a career Grand Slam – Muguruza a French and Wimbledon, Osaka two US Opens and an Australian Open.
Such was their calibre, it was a showdown worthy of a major final.
It was fitting that the pair's first clash would be blessed with so many momentum shifts and frantic shot-making across almost two hours.