交こう代たい投とう手しゅ

noun

relief pitcher

Baseball term for a pitcher who enters the game to replace the starting pitcher. Often contrasted with 救援投手 (きゅうえんとうしゅ), which is a more general term for any relief pitcher; 交代投手 specifically emphasizes the act of substitution.

See also: 救援投手

• 先せん発ぱつ投とう手しゅが打うたれて、すぐに交こう代たい投とう手しゅがマウンドに上あがった。

  The starting pitcher got hit, and a relief pitcher immediately took the mound.