The New York Mets’ R.A. Dickey has restored luster to one of the toughest pitches to hit: the knuckleball. Here’s a list of the five best pitchers to use the knuckleball exclusively:

5. Tim Wakefield » The ex-Boston pitcher’s stats aren’t gaudy, partly because he played in the steroid era of inflated offensive numbers. Still, in 17 seasons with Boston he finished third in franchise history in wins (186) and second in strikeouts (2,046).