Nov. 3 (UPI) -- Jannik Sinner replaced Carlos Alcaraz atop the ATP rankings Monday, but will revert to No. 2 next week because of the math involved. Sinner beat No. 8 Felix Auger-Aliassime of Canada in the 2025 Paris Masters finale Sunday to climb back to the world No. 1 ranking. Alcaraz lost in the Round of 32 of that tournament. No. 3 Alexander Zverev of Germany, No. 4 Taylor Fritz of the United States and No. 5 Novak Djokovic of Serbia held onto their spots in the Top 5 of the rankings. No.