Novak Djokovic aims threat at Roger Federer ahead of defence of US Open title

Novak Djokovic has warned Roger Federer that he is 100 per cent focussed on surpassing his Grand Slam record and hopes to continue his march at the US Open.

from Daily Express :: Tennis Feed https://www.express.co.uk/sport/tennis/1169940/US-Open-2019-Novak-Djokovic-Roger-Federer-Grand-Slam-titles-Rafael-Nadal
via Express