Tennis players are a sensitive bunch, and people like Ron Rocchi are forever trying to soothe them. Rocchi, an equipment manager at Wilson, runs the racket stringing shop at this year’s U.S. Open. Its ...

China’s Unitree G1 humanoid robot plays tennis after training on 5 hours of amateur motion capture data from five players.

If you play tennis, you know that racquet strings have to be replaced occasionally because they break or become too loose. But if you're on the men's pro tour, how well it's done can be the difference ...