Here are some photos of NFL officials on the field in Week 12, courtesy of team photographers and Getty Images.
From team photographers (click on a photo to begin the gallery):
Greg Steed (Detroit Lions)
Allen Baynes (Miami Dolphins)
Terry Killens (Las Vegas Raiders)
Jim Quirk (Buffalo Bills)
Alex Kemp (Tennessee Titans)
Dan Gallagher (Buffalo Bills)
Greg Steed (Detroit Lions)
Brad Allen and Danny Short (New Orleans Saints)
Ron Torbert (New York Giants)
Ron Torbert (Philadelphia Eagles)
Alan Eck (Miami Dolphins)
Dan Gallagher (New Orleans Saints)
Ryan Dickson (New York Giants)
Mike Dolce and Bryan Neale (Indianapolis Colts)
Kevin Codey (New York Giants)
Chad Hill (Las Vegas Raiders)
Grantis Bell (Green Bay Packers)
Ryan Dickson (New York Giants)
Shawn Smith (Indianapolis Colts)
Greg Bradley (Detroit Lions)
Mike Carr and Rich Hall (Tennessee Titans)
From Getty Images:
