Roger Federer, Dominic Thiem and Stefanos Tsitsipas receive Novak Djokovic warning

RESPECTED American coach Nick Bollettieri believes players with two-handed backhands are now more likely to get the better of those with a single-hander.

from Daily Express :: Tennis Feed https://www.express.co.uk/sport/tennis/1155437/Roger-Federer-Dominic-Thiem-Stefanos-Tsitsipas-Novak-Djokovic-Wimbledon
via Express