WATCH: Nick Kyrgios calls umpire delusional, gets just a warning

(G.N.S) DT.23 Australia’s tennis player Nick Kyrgios is known to have a hot head.Often, he is seen doing unnecessary antics on the field.And this time, the Aussie has gone the distance in hitting out at the umpire during his Laver Cup match against Roger Federer.Kyrgios is playing for Team World, which is