Eastern Division: Brooklyn, Philadelphia, Pittsburgh and Washington.
Northern Division: Chicago, Cincinnati, Milwaukee and Saint Louis.
Southern Division: Atlanta. Miami, New Orleans and Tennessee.
Western Division: Colorado, Los Angeles, San Diego and San Francisco.
Eastern Division: Baltimore, Boston, Cleveland and New York.
Northern Division: Detroit, Indianapolis, Kansas City and Minnesota.
Southern Division: Carolina, Houston, Tampa Bay and Texas.
Western Division: Arizona, Los Angeles, Oakland and Seattle.
New Orleans and Tennessee granted expansion franchises.
Diamondbacks switch from National to American League.
150 game schedule: Cubs play: 2 4-game home and 2 4-game road series vs. Brewers, Cardinals and Reds=48 games; 1 3-game home and 1 3-game road series vs. all other National League teams=72 games; 1 3-game home and 1 3-game road series vs. 4 teams from 1 American League division=24 games; 1 3-game home and 1 3-game road series vs. White Sox=6 games.
12 team playoff field-8 division winners and 4 wild cards. 2 best records-regardless of division winner or wild card-in each league receive 1st round byes. 5th and 6th best records play best 2 of 3 series-all at sites of 3rd and 4th best records. Divisional, League Championship and World Series All best 5 of 9.