Roger Federer could lose record to Novak Djokovic amid Rafael Nadal battle at ATP Finals

Roger Federer could lose his record of having won more ATP Finals tournaments than any other player as Novak Djokovic battles to end the year on top of the rankings.

from Daily Express :: Tennis Feed https://www.express.co.uk/sport/tennis/1201798/Roger-Federer-ATP-Finals-record-Novak-Djokovic-Rafael-Nadal-Matteo-Berrettini-rankings
via Express