Mattia Bellucci defeated Stéfanos Tsitsipás 6–4, 6–2 in the quarter-final of the ATP 250 Rotterdam on hard court on 7 February 2025, delivering a significant upset over the pre-match favourite. Bellucci, trading at 2.62 odds, controlled proceedings throughout to advance decisively, whilst Tsitsipás, who entered as the 1.45 favourite, failed to impose his usual rhythm on court. The Italian's convincing victory—a double break in the second set proving decisive—marks a notable scalp at a tournament level where consistency against seeded opposition typically separates contenders from occasional challengers. Bellucci's progression to the semi-finals signals a timely surge in form and raises questions about Tsitsipás's current trajectory on the hard court.