"It's unfortunate anytime anybody gets hurt," Hasselbeck said. "I certainly feel bad for Jake and his injury. I've been there. I've had that injury. Nothing's fun. Sleeping's not fun. Nothing's fun. I feel badly for him.
"At the same time ... when somebody gets hurt, somebody needs to step up, and your teammates, the rest of the team's counting on you to do your job."
The Vikings are pretty familiar with Hasselbeck from his years in the NFC with Seattle. He has started four games against Minnesota, going 1-3 as a starter. He's been sacked nine times by the Vikings while throwing for as many touchdowns as interceptions (five).
"Hasselbeck is a huge threat," Vikings defensive end Jared Allen said. "I played against him back when he was in Seattle, and let's put it this way, I don't think there's a quarterback that gets rid of the ball as fast as him, maybe Peyton (Manning), maybe he's second to Peyton, so it is a tough thing to prepare."
The Titans still are waiting to see if Hasselbeck will have receiver Kenny Britt available as a target. Britt sprained his left ankle Sept. 23 and did not practice Wednesday, though he did run on the side.
"There's no doubt he's going to have to improve the next couple of days so he can help us on Sunday," Munchak said. "At least he's heading in the right direction."
Notes: Middle linebacker Colin McCarthy practiced with the team for the first time since spraining his right ankle in the opener, though he was limited. Munchak said if the defensive captain has no setbacks they expect him to play "quite a bit" Sunday. ... TE Jared Cook (left shoulder) was limited. DE Scott Solomon (hamstring) did not practice along with LB Patrick Bailey (hand). RG Leroy Harris was given the day off for rest.
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