Stanley Anthony Coveleski was an American right-handed pitcher in Major League Baseball who played for four American League (AL) teams between 1912 and 1928, primarily the Cleveland Indians. The star of the Indians pitching staff, he won over 20 games each year from the war-shortened 1918 season through 1921, leading the AL in shutouts twice and in strikeouts and earned run average (ERA) once each during his nine years with the club. The star of the 1920 World Series, he led the Indians to their first title with three complete-game victories, including a 3–0 shutout in the Game 7 finale. Traded to the Washington Senators after the 1924 season, he helped that club to its second AL pennant in a row with 20 victories against only 5 losses, including a 13-game winning streak, while again leading the league in ERA.

The 1920 Cleveland Indians season was the 20th season in franchise history. The Indians won the American League pennant and proceeded to win their first World Series title in the history of the franchise. Pitchers Jim Bagby, Stan Coveleski and Ray Caldwell combined to win 75 games. Despite the team's success, the season was perhaps more indelibly marked by the death of starting shortstop Ray Chapman, who died after being hit by a pitch on August 16.