While Iga Swiatek has enjoyed plenty of success on other hard courts, the Australian Open is where she remains ripe to be on the end of an upset.
On Saturday, Emma Raducanu is planning to be the one who causes it in this year's third round.
British number two Raducanu goes toe-to-toe with the five-time major champion on Rod Laver Arena at 00:30 GMT.
"I wouldn't be afraid to say that this could be a big upset because Raducanu loves the spotlight," former world number five Daniela Hantuchova told BBC Radio 5 Live.
Raducanu, though, has lost all three of their previous matches.