Jannik Sinner stays perfect and Taylor Fritz also advances to the semifinals at ATP Finals

Jannik Sinner continued his dominance at the ATP Finals, securing a semifinal spot with a straight-set victory over Daniil Medvedev. Despite an ongoing doping case, Sinner extended his winning streak to nine matches, solidifying his position as a top contender for the title. Taylor Fritz also advanced to the semifinals after a hard-fought victory over Alex de Minaur.