Alex de Minaur had to save seven match points, and earned one of his own, before falling to defeat against his Australian Open conqueror Andrey Rublev at the Qatar Open.
Top-seeded Carlos Alcaraz lost for just the second time this year when 25th-ranked Jiri Lehecka beat him 6-3, 3-6, 6-4 in the quarterfinals of the Qatar Open.