Rube Bressler (October 23, 1894 - November 7, 1966) was an American left-handed pitcher in Major League Baseball for the Philadelphia Athletics from 1914 to 1916 and Cincinnati Reds from 1917 to 1920, before being converted to an outfielder and first baseman for Cincinnati from 1918 to 1927, the Brooklyn Dodgers from 1928 to 1931 and the Philadelphia Phillies and St. Louis Cardinals in his final year of 1931. The first two teams he played for made it to a World Series, the 1914 Philadelphia Athletics lost to the miracle Boston Braves, while the 1919 Cincinnati Reds won against the scandal-tained Chicago White Sox.
Bressler was born in Coder, Clinton County, Pennsylvania and grew up in nearby Flemington, Pennsylvania. He played for a company team at Renovo, Pennsylvania where he worked in a railroad shop before being recruited by Earle Mack, son of Connie Mack after beating Earle's All-Stars in a local game in 1912. The following year, Bressler pitched for Harrisburg of the Tri-State League and, the year after that, was brought to the Philadelphia club as the newest player at the end of the famous 1910-1914 dynasty.
Bressler was assigned to room with future Hall of Fame pitcher Chief Bender when he made his big league debut April 24, 1914. He posted a respectable 10-4 record and 1.77 E.R.A. for the 1914 American League champions, before dropping to a 4-17 record with a 5.20 E.R.A. the following year. By 1916, he dropped to 0-2 with a 6.60 E.R.A. and was assigned to the minor leagues after appearing in his last 4 games with Philadelphia. But with America's entry into World War I and a shortage of qualified professional baseball players, Cincinnati of the National League brought him back, where he posted an 8-5 record with a 2.46 E.R.A. in 1918, which earned him two more seasons with the club as a pitcher where he finished in 1920 with a lifetime record of 26-32 and a 3.40 E.R.A.
Though Bressler's career as a pitcher was short-lived, he would go on to play more than a decade as an outfielder and first baseman. In his first season as a position player in 1918, Bressler appeared in only three games off the pitcher's mound. He split the next two seasons before it became apparent he would serve the team better as a slick-fielding, good-hitting position player than as an injury-prone pitcher. From 1921 onward, Bressler became a full-time position player, never pitching another game in the major leagues. He finished his career with 1170 base hits, 586 RBI's and a .301 batting average.
In the final years of his life, Bressler was interviewed by writer Lawrence Ritter for his book The Glory of Their Times, widely considered the best baseball classic ever published. Bressler died in Cincinnati, Ohio at age 72, one of only a few players in major league baseball history to successfully convert from a pitcher to a position player.
Bressler was inducted into the Cincinnati Reds Hall of Fame in 1963.