"As a 23-year-old rookie, I was used mostly in mop-op relief, making just two starts. In 50 innings and 28 games, I posted a 5.36 ERA and weak 39/32 K/BB ratio. At age 24 I moved into the starting rotation, won 19 games, and remained in a major league rotation until I was injured at age 32. I won 20 games once and led the league in innings pitched twice. Who am I?"