Jannik Sinner replaced Carlos Alcaraz atop the ATP rankings Monday, but will revert to No. 2 next week. He earned the top spot by winning the Paris Masters.

A strong debut for Djokovic, who defeated the Chilean in straight sets. The Serbian continues his preparations for the weekend's Nitto ATP Finals in Turin.

Jannik Sinner captured his first Rolex Paris Masters title on Sunday, edging fast-rising Felix Auger-Aliassime 6-4, 7-6 (4) and regaining his No. 1 position in the ATP rankings. The Italian slipped to No.

Even if Sinner wins the ATP Finals undefeated, Alcaraz can keep the World No 1 spot by taking at least 500 ranking points from the tournament. This could be done by winning all three round-robin matches, or by winning at least one of his round-robin matches and also winning his semi-final.

Felix Auger-Aliassime can overtake the Italian for No. 8 in the race Saturday, with Daniil Medvedev also in the picture to shake things up.

Paris Masters results have left one spot at the ATP Tour Finals for two players — but Djokovic may offer another.

Fifth-seeded Frenchman Alexandre Muller shook off a loss of serve while trying to win the match and a match point against in the deciding set's 12th game and rallied to edge Germany's Jan-Lennard Struff 6-3,

Elena Rybakina drops just a single game set in comeback victory over Iga Swiatek; Cameron Norrie progresses to next round of ATP Moselle Open; watch the ATP and WTA Tour Finals live on Sky Sports Tennis and Sky Sports+,