Jannik Sinner conquered his first Paris Masters crown last week. The Italian defeated all five rivals in straight sets, dropping 29 games and producing one of the most dominant runs en route to the title in the French capital.

The two best tennis players in the men’s game will decide who ends the year as world No. 1 at the ATP Tour Finals in Turin, Italy.

“But I also find it interesting to highlight something. As usual, as for every tournament, we had four semifinalists. Three of them expressed a comment either on the surface or on the balls. If they ...