Clemens credited Seaver, a Hall of Fame pitcher who spent part of 1986 with the Red Sox, for helping him transform from a "thrower" to a "pitcher".
Clemens finished second to Welch, an Oakland pitcher who won 27 games, for the 1990 AL Cy Young Award, despite having better statistics.
Clemens and Maddux, both four-time Cy Young winners, faced each other in the 1999 World Series, when Clemens pitched for the Yankees and Maddux for the Braves.
Clemens and Schilling, both power pitchers and World Series champions, had a memorable duel in Game 7 of the 2001 World Series, when Clemens pitched for the Yankees and Schilling for the Diamondbacks.
Clemens and Martínez, both dominant and fiery pitchers, had several clashes in the AL East, especially in the 1999 ALCS, when Clemens pitched for the Yankees and Martínez for the Red Sox.