Kyrgios calls chair umpire 'delusional' during match vs Federer
World number 27 Nick Kyrgios, during his match against Roger Federer at Laver Cup, called the chair umpire John Blom "delusional" over a decision. The incident happened in the second set when Kyrgios' ace was declared out and Blom ruled the point to be replayed despite the hawk-eye showing it to be in. Blom then warned Kyrgios for "verbal abuse".