in baseball, a player in a team who throws the ball to the batter (= the person trying to hit the ball) after another player who does this leaves the game
He's the best relief pitcher in baseball.他是棒球界最好的后援投手。
更多例句
When he played, there were no relief pitchers .
Then, the relief pitcher is asked to get three quick outs in the ninth inning.
They trailed 4-2 before their relief pitchers gave up five runs.
It was the longest contract the Rockies had ever given a relief pitcher .