Sentence:  The opinion continues here that with a 162 - game schedule , pitching spread thin through a 10 - <WSD>team</WSD> league and a most inviting target in Los Angeles ' Wrigley Field Jr. , Mantle just might break the most glamorous record on the books , Babe Ruth 's 60 homers of 1927 . 
Meaning of the word marked with <WSD> tags:  a cooperative unit (especially in sports)