Theodore Bernard "Big Klu" Kluszewski (September 10, 1924 – March 29, 1988) was an American professional baseball player from 1947 through 1961.
He spent most of his 15-year Major League Baseball (MLB) career playing for the Cincinnati Reds as a first baseman.
Kluszewski was a National League (NL) All-Star for four seasons.
He had a .298 lifetime batting average, hitting over .300 seven times.
In 1954, he was the NL Most Valuable Player (MVP) runner-up (he had a .326 batting average, led the NL in home runs (49), RBI (141), and fielding average (.996)).
In 1959, Kluszewski was traded late in the season to the Chicago White Sox from the Pittsburgh Pirates.
He batted .297 and did not commit any errors in 31 games for Chicago which helped the "Go Go" White Sox of the 1950s clinch the American League pennant.
In 1962, he was inducted into the Cincinnati Reds Hall of Fame.