If you’ve ever picked up a tennis racket and attempted to serve against an opponent, you’ll know just how hard a skill it is. It’s one thing to get the ball over the net and yet a whole other thing to ...

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At this year’s Wimbledon, Olivetti’s fastest serve was 140 mph, which remains among the highest in the men’s game. When asked what makes his technique so powerful, the 6-foot-8 Frenchman initially ...