Otto Virtanen defeated Sebastian Korda 7–6, 6–7, 6–4 in the first round of the ATP 250 Marseille tournament on hard court on 10 February 2025, upsetting the pre-match favourite. Korda entered as the odds-on favourite at 1.38, while Virtanen was priced at 3.29, yet the Finnish player proved the stronger competitor across three closely contested sets. The match remained competitive throughout, with both players trading tight tiebreaks in the opening two sets before Virtanen secured the decisive third set. The result marks a significant upset and advances Virtanen into the second round, while Korda's tournament campaign ends at the first hurdle.