Devastated Kyrgios loses his cool again in US Open exit to Karen Khachanov

After the high of his performance against Medvedev on Sunday, Kyrgios looked a little flat

Nick Kyrgios shows his frustration (Frank Franklin II/AP)

Nick Kyrgios was left “devastated” as his quest for a first grand slam title at the US Open ended with a five-set quarter-final defeat by Russia’s Karen Khachanov.

After reaching the Wimbledon final, Kyrgios arrived in New York motivated to try to go one better but he was unable to find the same tremendous level he showed in beating defending champion Daniil Medvedev in the fourth round.