Sentence:  Mantle , the bull-necked blond switch-hitter , had one sensational triple-crown season , 1959 , when he batted .365 and also led the American League in home runs , 52 , and <WSD>RBIs</WSD> , 130 . 
Meaning of the word marked with <WSD> tags:  a run that is the result of the batter's performance