The retiring linebacker made seven tackles during the game, with only Dannell Ellerbe making more for the team.
However, the former Ravens defensive end told USA Today: "I think [Lewis] played with a case of the nerves. I think he had the yips. I really do.
"He had it bad; he didn't look like himself, even his new self. Forget his old self, that guy's gone, that guy's named Patrick Willis. But even the guy he was, he wasn't that guy.
"He had a case of it bad, badly. It was almost like he was just hoping let's get this over with."
Lewis is retiring after 17 seasons in the league.