Nick Kyrgios still cannot do a push-up, and does not believe he will ever be able to again. But one of the all-time greats – once a bitter online sparring partner – has revived his career. Nick Kyrgios still cannot do a push-up, and does not believe he will ever be able to again. But one of the all-time greats – once a bitter online sparring partner – has revived his career. Sport / Tennis Sydney Morning Herald – Latest News