SYDNEY (Reuters) - Nick Kyrgios was once fined for a "lack of best efforts" at the Shanghai Masters but the mercurial Australian is showing no signs of giving up on his crusade to have Novak Djokovic held accountable for the ill-fated Adria Tour.The 25-year-old has been taking pot shots at Djokovic and other tennis players who have breached social distancing guidelines since the exhibition event organised by the Serbian resulted in four players contracting COVID-19.
He launched another barrage at the world number one on Wednesday in response to a tweet quoting Djokovic, who has won his last 20 matches, contemplating the possibility he might get through the calendar year without losing.