Alexei Popyrin vs Martin Damm — R128 — Madrid Open

Martin Damm, 70 spots below his opponent at No. 126, knocked off No. 56 Alexei Popyrin 7-6(9), 6-4 in their first meeting and first clash on clay. The difference came on second-serve points, where Damm won 23 of 34 (68%) against Popyrin's 61%, then leaned on his return — 39% of Popyrin's second serves came back for points. Damm also edged the winner count 35 to 28 despite six double faults, taking 79 of 152 total points to flip a match he wasn't supposed to win.