The baseball postseason has been extended to include 10 teams. Major League Baseball and the MLBPA announced a new five-year labor agreement on Tuesday that included a few notable changes. An extra Wild Card club in each league will be added for next season, according to a source. The two wild cards in each league -- the non-first place teams with the best records -- will meet in a one-game playoff, and the winners will move on to the Division Series. The deal, which still must be ratified by the players and owners, is the first contract since Michael Weiner replaced Donald Fehr as union leader last year.