Here are NFL officials in action this wild card weekend.
Click on a photo to start the gallery.
Jerome Boger (Tennessee Titans)
Alternate Perry Paganelli (Buffalo Bills)
Brad Allen (Buffalo Bills)
Brad Allen (Buffalo Bills)
Paul King (Buffalo Bills)
Chad Hill (Tampa Bay Buccaneers)
Dan Ferrell (Chicago Bears)
Scott Novak (Washington)
Mike Weatherford (Baltimore Ravens)
Paul King (Indianapolis Colts)
Walt Coleman and Mike Weatherford (Baltimore Ravens)
Brian Bolinger and Keith Washington (Baltimore Ravens)
Anthony Jeffries (Baltimore Colts)
Brad Allen (Indianapolis Colts)
John Hussey (Seattle Seahawks)
Brad Freeman and Mike Weatherford watch referee Jerome Boger flip the coin. (Baltimore Ravens)
From Getty Images: