Did missed face mask cost the Packers?

Arizona's Michael Adams hits Green Bay's Aaron Rodgers on the final play of Sunday's game. AP Photo/Matt York

Green Bay's 51-45 loss at Arizona included any number of subplots.

Here's one of them: On the final play of the game, Cardinals cornerback Michael Adams seems to have a hold of Packers quarterback Aaron Rodgers' facemask. Rodgers fumbled the ball, and it was returned 17 yards by Karlos Dansby for a touchdown.