Cousins said the coaches informed him that he would start this week. Rex Grossman will be the backup quarterback with Griffin a game-day inactive.
Chicago Bears coach Marc Trestman has deferred on announcing a starting quarterback for Sunday's game at Cleveland.
Trestman said Wednesday that Jay Cutler's availability to play against the Browns would be determined by how he handles a late afternoon workout and his ability to avoid further problems with a sprained ankle.
Quarterback Aaron Rodgers' return this week for the Green Bay Packers appears unlikely, according to multiple reports, but he took some first-team reps with the offense on Wednesday.
Rodgers is experiencing pain in his broken left collarbone during practice and, while the Packers have yet not ruled him out for Sunday's game against the Dallas Cowboys, it does not look like he will be cleared to play, ESPN and other media outlets reported Wednesday.
New York Giants quarterback Eli Manning has said he is willing to talk this offseason about restructuring his contract if it becomes necessary to ease the burden on the team.
"I haven't thought about it, but if they come to me, yeah, we'll discuss it and figure out a plan," Manning said, via NJ.com.
The 32-year-old Manning is signed through 2015 at salaries of $15.15 million and $17 million over the next two seasons.
According to Spotrac.com, Eli counts for $20.4 million and $19.75 million over the next two years against the cap.
The Denver Broncos will be without wide receiver Wes Welker for their AFC West matchup with the San Diego Chargers on Thursday night.
Welker will miss the game because of a concussion that he suffered in Sunday's 51-28 win over the Tennessee Titans on a hit by safety George Wilson, the Broncos announced Wednesday.
Matt Cassel will remain the Minnesota Vikings' starting quarterback this week and running back Adrian Peterson hopes to be able to practice on Friday in preparation for Sunday's game against the Philadelphia Eagles.
Peterson exited last Sunday's game against the Baltimore Ravens in the second quarter with a mid-foot sprain and has been wearing a walking boot. An MRI showed no structural damage.
"He can do things that most can't, in terms of coming back from injuries," Vikings coach Leslie Frazier said.
Former NFL quarterback Craig Morton was part of a federal lawsuit filed against the NFL by former players who contend that they suffered long-term effects from head injuries.
The 70-year-old Morton is seeking unspecified compensatory and punitive damages, according to the 84-page lawsuit, which was filed in US District Court in northern California.