Walter Perry Johnson (November 6, 1887 – December 10, 1946), nicknamed "Barney" and "the Big Train", was an American professional baseball player and manager. He played his entire 21-year baseball career in Major League Baseball as a right-handed pitcher for the Washington Senators from 1907 to 1927. He later served as manager of the Senators from 1929 through 1932 and of the Cleveland Indians from 1933 through 1935.
Generally regarded as one of the greatest pitchers in baseball history, Johnson established several records, some of which remain unbroken. He remains by far the all-time career leader in shutouts with 110, second in wins with 417, and fourth in complete games with 531. He held the career record in strikeouts from 1919, passing Christy Mathewson’s mark of 2,507, until 1983, when three players (Steve Carlton, Nolan Ryan and Gaylord Perry) passed his career total of 3,508. On July 22, 1923, Johnson became the first pitcher to record 3,000 strikeouts. He remained the only player to do so until Bob Gibson matched the feat on July 17, 1974. Of the club's 20 members, he pitched the most innings and has the lowest strikeouts per nine innings pitched (5.34 K/9).