Anisimova, Collins and Opelka also saw their bids at Hard Rock Stadium ended.

They've always played close matches. Will the Italian close the door?

After toppling the defending champion with a strong serving performance, Sabalenka will meet Zheng Qinwen in the quarterfinals.

The six-time Miami champ heaped praise on the young Brazilian, who has already made waves on his way to the third round.

Alexander Zverev and Carlos Alcaraz continue trailing Sinner in the rankings despite the latter's three-month ban due to an anti-doping rule violation.