Possible Clues:

• World Series org
• World Series org.
• Angels' org
• Sammy Sosa's org
• Orioles' org.
• Org. with A's and O's
• Org. with Jays and Rays
• Org. in which you'd hear the answers to starred clues
• Sports org. for the players that begin the answers to starred clues
• Cubs' org