Back to the Bench on Instagram: "John Isner looked like he shouldn’t move the way he did — and yet he did. At 6’10”, Isner was one of the tallest players the sport has ever seen, and his height turned his serve into one of the most dominant weapons in tennis history. The angle, the bounce, the pace — returners were constantly guessing, and often helpless. But what made Isner impressive was everything beyond the serve. Despite his size, he moved well, covered the court intelligently, and used his

⚡️ Officially the fastest serve in history ⚡️ In 2016, John Isner produced this staggering 253 km/h serve against Bernard Tomic in Melbourne 🤯 | Davis Cup