The Nitto ATP Finals returns to The O2 in London for the 11th straight year and features the top trio of Rafael Nadal, Novak Djokovic and Roger Federer, who first played together at the season finale in 2007. This marks the 50th edition of the year-end championship, which has been held in 14 different cities since the inaugural tournament in Tokyo.
Federer holds a couple distinctions at the Nitto ATP Finals, as the winner of a record six singles titles and as the oldest champion in tournament history. John McEnroe is the youngest champion on the honour roll, having won his first of three titles at the age of 18. He also claimed a record seven doubles titles alongside fellow American Peter Fleming, from 1978-1984 in New York City.
