- Teen becomes youngest year-end No 1 since rankings began
- Nadal loses four successive ATP matches since 2009
Rafael Nadal was eliminated from the ATP Finals after Casper Ruud took the first set off Taylor Fritz in their round-robin match in Turin, which also guaranteed that Carlos Alcaraz would end the year as world No 1.
Spaniard Nadal needed to win the tournament to take the rankings top spot from compatriot Alcaraz, but straight-set losses to Fritz on Sunday and Felix Auger-Aliassime earlier on Tuesday left him needing Ruud to lose in straight sets to keep his hopes alive. The Norwegian, however, won the first set 6-3 against Fritz before securing victory over the American.