The quarter-finals of the Australian Open begin in Melbourne on Tuesday as third seeds Stefanos Tsitsipas and Jessica Pegula highlight the nightime matches on Rod Laver Arena.
Tsitsipas is the highest remaining seed in his side of the draw after surviving a five-set battle with Jannik Sinner and faces the rising star Jiri Lehecka in the last eight, with the young Czech knocking out Felix Auger-Aliassime and Cameron Norrie so far.
