📸 HistoricPix 📸 on Instagram: "John McEnroe’s infamous “You cannot be serious!” outburst at Wimbledon in 1981 became one of the most iconic moments in tennis history. During his first-round match against Tom Gullikson, McEnroe disagreed with a line call that ruled his serve out. Frustrated, he shouted the now-famous phrase at umpire Edward James, igniting a mix of laughter and shock from the crowd. Known for his fiery temper, McEnroe’s antics drew heavy criticism from traditionalists who value