PARIS—As pleased as Jannik Sinner was to make his debut at No. 1 in the ATP rankings on Monday, he already was looking ahead to what comes next.
So no big party to mark the significance of the occasion?
Jannik Sinner clenches his fist after winning a point against Grigor Dimitrov during their quarterfinal match at the French Open in Paris on June 4, 2024. Christophe Ena/AP Photo
