
Tomas Machac withdrew from the Miami Open presented by Itau on Tuesday due to illness. His scheduled opponent, fellow Czech Jakub Mensik, advances to the quarter-finals.
The showdown between Machac and Mensik would have been their second Lexus ATP Head2Head clash after Machac's three-set victory in Acapulco earlier this year. It would have been the first all-Czech matchup in the Round of 16 or later at an ATP Masters 1000 event since Tomas Berdych and Lukas Rosol met in the fourth round of the BNP Paribas Open in 2015.
Mensik will now take on top seed Alexander Zverev or 17th seed Arthur Fils in his second Masters 1000 quarter-final (2024 Shanghai). The 19-year-old is the sixth teenager to reach the Miami quarter-finals since 2010, joining Zverev, Denis Shapovalov, Felix Auger-Aliassime, Jannik Sinner and Carlos Alcaraz. Those five players have all cracked the Top 10 in the PIF ATP Rankings.
Mensik is up to No. 46 in the PIF ATP Live Rankings and will break into the Top 35 if he reaches the semi-finals. He has defeated Roberto Bautista Agut, Indian Wells champion Jack Draper and Roman Safiullin in Miami to improve his record for the season to 11-6, according to the Infosys ATP Win/Loss Index.