Biggest X-Factors for Packers vs. Cardinals NFC Divisional-Round Showdown

On Saturday evening, the Green Bay Packers and Arizona Cardinals will clash in a divisional-round matchup with a berth in the NFC Championship Game on the line.

Who needs to have a big game for Green Bay to pull off the upset? Which offensive playmaker could turn the tide for the Cardinals? 

Watch as Adam Lefkoe and Bleacher Report NFL Analyst Chris Simms examine the X-factor's of this divisional-round matchup in the video above.