Sam Howell

Seattle Seahawks quarterback Geno Smith suffered a knee injury in the second half of Sunday night's 30-13 loss to the Green Bay Packers and did not return.

Seahawks head coach Mike Macdonald told reporters after the loss that it appeared Smith's knee was structurally OK, but the extent of the injury was unclear. Smith will undergo further evaluation on Monday.

"I'll tell you this, this guy's probably the toughest player I've been around," Macdonald said of Smith. "(It was) severe enough for him not to come back in the game. We'll do all the tests tomorrow and kind of figure it out as we go. Right now, structurally it looks like it's OK. We'll get him imaged and all that stuff."

Related players: Sam Howell

The story said Smith wanted to go back in but couldn't and would eventually give way to Howell. The Seahawks host the Vikings in Week 16 in a later Sunday game. Owners will need to monitor Smith this week. It's not great news that it was severe enough that he couldn't go back in the game, so his status for Week 16 is very much in doubt. Howell was just 5 for 14 for 24 yards and an INT. He was also sacked four times in his limited play.