For 11 months, professional tennis exists largely as a hitting contest light on finesse. Then the grass season arrives in June, reaching its zenith at Wimbledon’s All England Club in the middle of ...

While grass-court tennis favors big serves and blistering ground strokes, it also rewards players who mix in subtlety and finesse. Among the favored options at a player’s disposal is the slice.

Patrick Mouratoglou’s expertise in tennis is widely recognized, making him an exceptional source of advice for the sport. He spent a long stretch with Serena Williams and more recently parted ways ...