Nick Kyrgios rates Andy Murray's coaching debut after Novak Djokovic's AO exit
Novak Djokovic and Andy Murray maybe didn't kick off their partnership with a triumph but Nick Kyrgios still thinks that the Briton did "an incredible job" in his coaching debut. On Friday, the Serb's bid for a record 11th Australian Open title came to an end in an unfortunate way after a muscle tear forced him to retire after losing the first set of his semifinal against Alexander Zverev.