proposed catcher re sub rule a lot of teams carry catchers on their man roster but the rd catcher is seldom ever used he is only insurance in case of extra innings or the nd catcher is injured during a game so to free up this roster spot for an extra pinch hitter or reliever why not invoke a catcher re substitution rule if the last roster catcher on a team is injured during a game the team is permitted to substitute in his place for defensive purposes a catcher who has previously been yanked from the game given this rule a team wouldn t need roster catchers the rd catcher could be playing in aaa or be a non roster bullpen catcher ken
