Rosenfels doesn't know what his future with the Vikings may hold, as the team approaches Saturday's roster deadline in the purging of at least 22 players to get down to the roster maximum of 53, but he is confident he has played well in the last month.
"I feel certain that I can play well in this league. That's what I feel certain about. I feel like if and when this team needs me I can play at a very high level and I think I've played pretty well this preseason," he said. "I've played well since we left Mankato, and at the end of Mankato, and I think I'm playing high-quality football. My goal is to continue to play at a high pace."
In fact, Rosenfels has the highest completion percentage on the team (75 percent) but the lowest passer rating of the top three quarterbacks because he hasn't yet thrown a touchdown pass. He has connected on 12 of 16 passes for 117 yards and 95.1 passer rating. Jackson, who is also challenging for that backup role, has completed 21 of 32 passes (65.6 percent) for 263 yards, two touchdowns and a 111.8 rating.
Childress said he hasn't decided yet which quarterback will start Friday's game, but it won't be Favre.
"I just go out there when coach wants me to go out there. I love playing. I'll never say, ‘Take me out.' That's for sure. I love playing regular-season games, preseason games, practices, scrimmages, it doesn't matter to me," Rosenfels said. "All that stuff is left up to the people upstairs and whenever I go in there, as much as I go in there, I'm going to try to play really high-quality football.
"I think I've done a lot of good things when I'm in there and I've made very few mistakes. That's half the battle as a quarterback, not making mistakes. I've been trying to execute the offense and I think we've done a pretty good job when I've been in there. We've moved the ball for the most part. Obviously missed the second game; (that) kind of stunk."
Rosenfels missed the Kansas City game because of a sprained ankle he suffered in the preseason opener. It was an injury he played through for the rest of his stint against Indianapolis, but it caused him to miss practice time following that, much of which was during Favre's first days in purple.
During the early portions of training camp, Rosenfels was trying to get used to certain nuances in the Vikings offense – how different receivers run routes and being responsible for calling some of the protections. Since then, however, he has looked more comfortable and said that is the case.
"It's been there for probably the last three weeks. … The Indianapolis game, I felt very, very comfortable. I feel like I've been in this offense for a couple years now," he said. "I feel as comfortable as I can be and I think that showed in the two times I played in just my comfort level with the guys."