One of the strongest-hitting shortstops in major league history, Stephens compiled a .286 batting average with 247 home runs and 1,174 RBI in 1,720 games. In 1944, Stephens led the American League with 109 runs batted in as he led the Browns to their first and only World Series appearance in St. Louis. He also led the league with 24 home runs in 1945.
Amid a salary dispute with the Browns, Stephens signed a five-year contract with the Azules de Veracruz of the Mexican League in 1946. He played in two games for Veracruz, with one single in eight at bats, before deciding to return to the United States; his father, a minor league umpire, and the Browns scout Jack Fournier drove down and brought him across the border. Stephens' departure infuriated Mexican League president (and Azules owner) Jorge Pasquel, but it saved him from the five-year suspension that Commissioner of BaseballHappy Chandler levied on the other major leaguers who "jumped" to Mexico.
After the 1947 season, he was traded along with Jack Kramer to the Boston Red Sox, but later, after a brief stint with the Chicago White Sox, returned to the Browns in 1953, their last season in St. Louis. Stephens was the only member of the pennant-winning 1944 St. Louis Browns who played with the Baltimore Orioles when the Browns moved to Baltimore in 1954.
Stephens played five years with the Boston Red Sox from 1948 to 1952. Ted Williams said that he was the most effective of those who followed him in the batting order. In 1949 he batted in 159 runs (tied with Williams for the league lead) and hit 39 home runs, second only to Williams's 43. No other player in the American League had more than 24. Second baseman Bobby Doerr, who was lionized in David Halberstam's book Summer of '49, hit 18 home runs.
In August 2008, he was named as one of the ten former players who began their careers before 1943 to be considered by the Veterans Committee for induction into the National Baseball Hall of Fame and Museum in 2009. He was not selected.
Only man to play for the 1944 American League Champion St. Louis Browns and the Baltimore Orioles, the team the Browns franchise became after it moved to Baltimore in 1954
Holds the MLB record for RBI in a season by a shortstop, with 159 in 1949
Became the first shortstop to hit 30 home runs in a season, with 39 in 1949
Attended Polytechnic High School, Long Beach, California (also attended by Tony Gwynn, Chase Utley, Milton Bradley, etc.)