Sentence:  Mantle , the bull-necked blond <WSD>switch-hitter</WSD> , had one sensational triple-crown season , 1959 , when he batted .365 and also led the American League in home runs , 52 , and RBIs , 130 . 
Meaning of the word marked with <WSD> tags:  a baseball player who can bat either right or left handed