Vikings quarterback Brett Favre will have an MRI on his injured throwing (right) shoulder today to see if the damage goes beyond the sprained sternoclavicular joint he already knows he suffered on his first pass attempt Sunday against the Buffalo Bills.

The injury caused Favre's exit on only the third play from scrimmage and he did not return. Favre admitted he could have not have thrown the football after that. Favre said following the game that he was not overly concerned about the injury, but one has to admit that when a quarterback says he can't throw the football that is never a good thing.

It's uncertain how much of an update we'll get from Vikings coach Leslie Frazier this afternoon at his weekly day-after-game news conference. Frazier, for instance, said last Monday that while he believed Adrian Peterson had suffered nothing more than a sprained ankle the day before at Washington that the entire MRI process was not done at that point. Frazier turned out to be right, Peterson had an ankle sprain and that didn't stop him from scoring three touchdowns against Buffalo.

Frazier made it clear after the victory over the Bills that if Favre is healthy he will be the starting quarterback on Sunday against the New York Giants at Mall of America Field. Favre, 41, already holds the NFL record for consecutive starts and Sunday would be his 298th.

Favre has dealt with numerous injuries this season, including a stress fracture in his left foot and another fracture in his left ankle that he suffered on Oct. 24 at Green Bay. Favre was able to start the following week at New England but did leave that game in the fourth quarter after suffering a gash in his chin that required stitches.

"The game of football is tough," Favre said. "Very tough. For me, I have always been willing ... the reward has always been great enough. ... I would love to finish this out. This whole year. I have said that all along. [But] it's like going back in that game.

"I took a few throws on the sideline and I said, 'It wasn't so much is it worth it or not worth it, it was can I be effective?' That answer was no and that is saying a lot to me. That's what I will ask this week, 'Can you be effective if you play?' If the answer is yes, if I think I can, I would love to play and see this through." Favre, who has said several times that this will be his final season, was asked if he was worried he might have taken his last snap Sunday? "I don't know about worried," he said. "You're probably referring more to [the] streak or something like that. It's my 20th year. If I was a second-year guy and we were talking about career that would be a concern. There's not many games left for me either way. I would like to see it through, I would like to play. It's what I came in here for. This is a different injury. I have no idea how I will respond to the week of treatment, so we'll see." If Favre can't go against the Giants -- and given his history you have to believe he will be on the field when the game begins --Tarvaris Jackson will become the answer to a heck of a trivia question.