Nick Kyrgios, the most engaging young arriviste in tennis, looks to have run into a physical and mental brick wall on his way to world domination, and seems lost on the eve of Wimbledon, where last year he announced his arrival with a virtuoso performance to stun Rafael Nadal.
Having already pulled out of the Nottingham tournament with an unspecified illness, the Australian announced he was leaving his on-off coach, Todd Larkham, by mutual consent. And he still has to get his chronically weak elbow into shape in time for the championships, which start on Monday – not to mention coping with a large dose of ennui.