Expanding and Collapsing Tree Structures

• American League
  • AL Central
    • Chicago White Sox
    • Cleveland Indians
    • Detroit Tigers
    • Kansas City Royals
    • Minnesota Twins
  • AL East
    • Baltimore Orioles
    • Boston Red Sox
    • New York Yankees
    • Tampa Bay Rays
    • Toronto Blue Jays
  • AL West
    • Houston Astros
    • Los Angeles Angels
    • Oakland Athletics
    • Seattle Mariners
    • Texas Rangers
• National League
  • NL Central
    • Chicago Cubs
    • Cincinnati Reds
    • Milwaukee Brewers
    • Pittsburgh Pirates
    • St. Louis Cardinals
  • NL East
    • Atlanta Braves
    • Miami Marlins
    • New York Mets
    • Philadelphia Phillies
    • Washington Nationals
  • NL West
    • Arizona Diamondbacks
    • Colorado Rockies
    • Los Angeles Dodgers
    • San Diego Padres
    • San Francisco Giants