Born and raised in San Diego, Williams played baseball throughout his youth. After joining the Red Sox in 1939, he immediately emerged as one of the sport's best hitters. In 1941, Williams posted a .406 batting average; he is the last MLB player to bat over .400 in a season. He followed this up by winning his first Triple Crown in 1942. Williams was required to interrupt his baseball career in 1943 to serve three years in the United States Navy and Marine Corps during World War II. Upon returning to MLB in 1946, Williams won his first AL MVP Award and played in his only World Series. In 1947, he won his second Triple Crown. Williams was returned to active military duty for portions of the 1952 and 1953 seasons to serve as a Marine combat aviator in the Korean War. In 1957 and 1958 at the ages of 39 and 40, respectively, he was the AL batting champion for the fifth and sixth time.