Each Contending Team's X-Factor Who Could Have Greatest Impact Down the Stretch There are currently more than a dozen teams in MLB who are in contention for the division lead or postseason berth. On each of those teams there is a player who could be considered a potential X-Factor in deciding his team's postseason fate. Here are several players who could play key roles as the season advances towards postseason play. Begin Slideshow
June 27, 2013 - Bleacher Report