The important change Stefanos Tsitsipas made to seal ATP Finals triumph

Stefanos Tsitsipas made an important change that led him to his triumph at the ATP Finals and could take him to even bigger and greater things.

from Daily Express :: Tennis Feed https://www.express.co.uk/sport/tennis/1207527/Stefanos-Tsitsipas-ATP-Finals-Roger-Federer-Dominic-Thiem-Rafael-Nadal-Novak-Djokovic
via Express