Last week, the Minnesota Vikings were concerned enough about Everson Griffen's state of mind that they barred the three-time Pro Bowl defensive end from practice until he had a mental health evaluation.

After a scary series of incidents on Saturday, Griffen remained away from the team on Tuesday and out of action indefinitely. Coach Mike Zimmer said Griffen would not travel with the team to play the Los Angeles Rams on Thursday.

"The only thing we really are concerned about for Everson isn't anything to do with football. It's about him getting better," Zimmer said.

"In the five years that I've been here I've always loved Everson and the effort that he puts out, the work that he does, the chance to count on him in game time and even in practice. He's always been a really, really good model for us, and obviously he's going through some tough times now."

Griffen, 30, was already going to miss the game last Sunday against the Buffalo Bills because of a nagging issue with his knee.

According to police in Minnetrista, the Minneapolis suburb where he lives, Griffen was making comments about people trying to kill him. He was eventually transported by ambulance to an area hospital for his well-being, despite jumping out of the vehicle at one point during a brief stop for crossing deer.

Winston questions

The Tampa Bay Buccaneers can't avoid questions about Jameis Winston's return much longer.

The young quarterback's three-game suspension for violating the NFL's personal conduct policy officially ended after Monday night's 30-27 loss to the Pittsburgh Steelers, however it's unclear if he's coming back as the team's starter.

Ryan Fitzpatrick's made the decision a lot tougher than expected by throwing for over 1,200 yards and 11 touchdowns in Winston's absence, including going 30 of 50 for 411 yards and three TDs against the Steelers.

Titans news

The Tennessee Titans have added a quarterback with Marcus Mariota dealing with an injured elbow and backup Blaine Gabbert in the concussion protocol.

The Titans made a flurry of moves Tuesday agreeing to terms with veteran quarterback Austin Davis. They also placed offensive lineman Kevin Pamphile on injured reserve to create a roster spot after he started the last two games.

Davis joins his sixth NFL team after starting his career with the then-St. Louis Rams in 2012 as a rookie free agent out of Southern Mississippi. The 6-foot-2, 221-pound Davis also has been with Miami, Cleveland, Denver and Seattle.

Talib surgery

Los Angeles Rams cornerback Aqib Talib will undergo surgery Thursday to repair an ankle injury. Rams coach Sean McVay said a timetable for Talib's return will not be known until after the procedure is completed.