The league cleared the Vikings of all charges. Green Bay included in the trade to New York a clause that made it all but impossible for the Jets to turn around and ship Favre to the Vikings.

But when the Jets granted the 39-year-old Favre his release last week, it made him a free agent who is eligible to sign with any team he chooses. And many experts say the Vikings are a quarterback away from being a legitimate Super Bowl contender.

With unproven veterans Sage Rosenfels and Tarvaris Jackson slated to duke it out in training camp for the starting job, it would come as no surprise that the Vikings would at least consider adding a three-time MVP who holds the career records in every major statistical passing category, including interceptions.

But the move would not come without questions.

After an impressive start to his first and only season in New York — he threw a career-high six touchdown passes in a win over Arizona in Week 4 — Favre's production dipped considerably over the final five games while he dealt with shoulder and biceps injuries. He threw nine interceptions in that span and the Jets stumbled to a 1-4 finish.

The Associated Press contributed to this report.