Sanford "Sandy" Koufax /ˈkoʊfæks/ (born Sanford Braun, on December 30, 1935) is an American left-handed former pitcher in Major League Baseball who played his entire career for the Brooklyn/Los Angeles Dodgers, from 1955 to 1966. Koufax's career peaked with a run of six outstanding seasons from 1961 to 1966, before arthritis ended his career at age 30. He was named the National League's Most Valuable Player in 1963, and won the 1963, 1965, and 1966 Cy Young Awards by unanimous votes; in all three seasons, he won the pitcher's triple crown by leading the league (indeed, both major leagues) in wins, strikeouts, and earned run average. A notoriously difficult pitcher for batters to face, he was the first major leaguer to pitch more than three no-hitters (including the first perfect game by a left-hander since 1880), to average fewer than seven hits allowed per nine innings pitched in his career (6.79; batters hit .205 against him), and to strike out more than nine batters (9.28) per nine innings pitched in his career. He also became the 2nd pitcher in baseball history to have two games with 18 or more strikeouts, and the first to have eight games with 15 or more strikeouts.