Kenny Serwa will never forget his first knuckleball. He was 9 years old. It was the summer of 2006. His father, Ken Serwa, stood ready to catch. Kenny had been trying sliders and curveballs in the ...

The knuckleball has long been one of baseball’s most esteemed and bizarre traditions. Now it is nearing extinction. This year, major league pitchers have thrown only 15 knuckleballs. Those have come ...

The knuckleball — a pitch thrown with little to no spin that moves unpredictably — has become increasingly rare in modern baseball. Recent practitioners like R.A. Dickey have retired, leaving few true ...