The US travel ban on those unvaccinated against Covid-19 continues to stand, but is there something Novak Djokovic knows that we don't? The Wimbledon champion hinted as much during a to-and-fro chat with Nick Kyrgios on social media, promising that he would shout Kyrgios to a dinner in New York, accompanied by a number of suggestive emojis. Novak Djokovic may yet play at the US Open, if a cryptic social media chat with Nick Kyrgios is to be believed. Djokovic defeated Kyrgios in the final of Wimbledon last Sunday but as he confirmed during SW19, he had not been expecting...