Hawk-Eye tech has had a profound impact on professional tennis. Is it all good news, though? “You cannot be serious!” If John McEnroe was still playing today, he’d be yelling at a computer system. That’s because Hawk-Eye has completely changed the way we watch professional tennis. When Novak Djokovic won his fourth US Open crown with a straight sets win over Daniil Medvedev on Monday morning – Ajde Nole! –