Alexander Blockx vs Felix Auger-Aliassime — R32 — Madrid Open

World No. 69 Alexander Blockx knocked off fifth-ranked Felix Auger-Aliassime 7-6(3), 6-3 in the pair's first meeting, and the serve did the damage: Blockx won 83% of his first-serve points to the Canadian's 71%. The error count flipped the rest — 27 unforced from Auger-Aliassime against just 12 from Blockx, who outscored the favourite 73 points to 57. A clean tiebreak (7-3) settled the opener and the upset never wavered.