If Brett Favre can't play Monday night against the Chicago Bears, the Minnesota Vikings won't be turning to backup Tarvaris Jackson as his replacement.
The team placed Jackson on injured reserve Thursday with a turf toe injury, a league source told ESPN NFL Insider Adam Schefter.
Jackson left last Monday's loss against the Giants twice with an injury, the second time because of the turf toe issue. Jackson leaned heavily on a railing to get up steps toward the locker room after the game.
The team reportedly has signed veteran quarterback Patrick Ramsey after working him out. He hasn't played in a game since 2008.
Favre was feeling better Tuesday, according to coach Leslie Frazier, after his NFL-record streak of starting 297 straight regular-season games ended Monday with him on the sideline at Ford Field in Detroit during Minnesota's loss to the Giants.
He is nursing a sprained throwing shoulder and a numb hand, but an ultrasound on Favre's neck and shoulder revealed no nerve damage, Frazier said.
