Defensive end Kabeer Gbaja-Biamila suffered a neck stinger while sacking Byron Leftwich on the play in which safety Darren Sharper alertly snatched away a loose ball and scored a touchdown. He underwent an MRI on Monday, the results of which were not disclosed.
"Lee's been playing on one-and a-half legs," Sherman explained. "His knee has been worn down. And I just felt like watching him in practice last week, he was just struggling and that's why he didn't play in the game.
"Both came back from their injury quicker than expected, maybe in hindsight, too quick," Sherman added.
On offense, quarterback Brett Favre, who fell awkwardly on his left thumb during the first half Sunday, "appeared to be OK."
Pro Bowl guard Marco Rivera likely will miss Tuesday's practice due to back spasms.
Backup offensive tackle Kevin Barry, who serves as an extra blocker, is continuing to rehab a strained thigh. Sherman said Barry will be tested Tuesday in hopes he can play Friday at Minnesota.