Samuel Kelvin Peralta Sosa (born November 12, 1968) is a Dominican American former professional baseball right fielder. Starting his career with the Texas Rangers, Sosa became a member of the Chicago Cubs in 1992 and became one of the game's best hitters. Sosa hit his 400th home run in his 1,354th game and his 5,273rd at-bat, reaching this milestone quicker than any player in National League history. He is one of nine players in MLB history to hit 600 career home runs.In 1998, Sosa and Mark McGwire achieved national fame for their home run-hitting prowess in pursuit of Roger Maris' home run record. Sosa is best known for his time with the Cubs where he became a 7-time All-Star while holding numerous team records. He finished his career with stints with the Baltimore Orioles and the Texas Rangers. With the Rangers, Sosa hit his 600th career home run to become the fifth player in MLB history to reach the milestone. Sosa is second all-time in home runs among foreign-born MLB players and is one of only three National League players since 1900 to reach 160 RBIs in a season (2001). Sosa is also the only player to have hit 60 or more home runs in a single season three times. In a 2005 congressional hearing, Sosa—through his attorney—denied having used performance-enhancing drugs during his playing career.