“You can’t be serious, man. You cannot be serious. That ball was on the line.” Remember the now-iconic line made immortal by 7-time slam champion John McEnroe 44 years ago? It was the exact moment when “Shock blew up” at the Centre Court as McEnroe, then 20, showed his furious side to the world, ironically during the Gentlemen’s event on grass in 1981. Tennis, since then, has witnessed many instances of on-court aggression to the point where McEnroe’s incident pales in comparison. Sometimes you see Andrey Rublev expressing frustration on himself through his racket when things go sideways, or former WTA icon Serena Williams arguing with the chair umpire in the 2018 US Open final . But nothing comes close to Russian ATP pro Daniil Medvedev’s repetitive on-court antics. This year’s US Op

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