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.

A leading tennis expert had pinpointed the benefits that Novak Djokovic was enjoying with Andy Murray as his coach before his shock retirement from the Australian Open on Friday. Djokovic called it quits after dropping the first set against Alexander Zverev,