Randy Johnson is retiring after 22 major-league seasons.
The Big Unit, an overpowering lefty who last June became the 24th pitcher in big league history to win 300 games, made the expected announcement Tuesday during a conference call.
A five-time Cy Young Award winner, the 46-year-old Johnson accomplished just about everything in his remarkable career that a player hopes for in baseball.
He owns a World Series ring and co-MVP honours and was a 10-time all-star.
Johnson threw two no-hitters, including a perfect game, and ranks second on the career strikeout list.
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