Nearly 20 years later, Kenny is throwing that same knuckleball in the Detroit Tigers ' organization, now with Double-A Erie. Signed in January 2025, he has already been promoted from High-A West ...

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 ...