"Sorry Brett. You're on the other side now," said LeRoy Butler, who played with Favre on the 1996 Super Bowl winners, according to the Milwaukee Journal Sentinel.
"It's not just another person that walked away, it's Brett, whom we all loved and admired and thought the world of, and now he's on the dastardly Vikings," added Jerry Kramer, a guard on Vince Lombardi's back-to-back Super Bowl winners, according to the report.
"The only thing that could be worse for me is the Bears, and I don't know if that would be worse," Kramer said, according to the report. "Brett Favre wearing a Vikings uniform playing the Packers? That's about as bad as it gets."
Whether they like it or not, Packers fans and ex-players will face the reality of seeing Favre's No. 4 jersey in Minnesota Vikings purple on ESPN's "Monday Night Football." The Chicago Bears may be the Packers' oldest NFL rivals, but the Vikings are the team many Packers players and fans love to hate.
"When you switch to the Vikings, that's the one team you hate and hate's a strong word," said Butler, according to the Journal Sentinel. "That's the one thing you dislike. You enjoy beating the Bears, it's a great rivalry. But when you play the Vikings -- Hatfield and McCoys, that's how it is. All the rules go out. You have to beat them. It's a must-win game. You can live with splitting with Chicago. You can't live and you can't sleep losing to the Vikings."
The ex-Packers understand the business of pro football has changed and that loyalties can be set aside at a moment's notice. Kramer, for one, blames Packers management for driving Favre away and planting the seeds of revenge, according to the report.
Even ex-Packer Fuzzy Thurston, who had a close bond with Favre, is upset. Framed photos of Favre no longer hang on the walls in Thurston's home, according to the report -- even the one that's personally autographed to Thurston's wife and reads: "To Sue -- From your favorite Packer, Brett Favre. Too bad, Fuzzy."
Thurston, who played on five Packers championship teams, has trouble speaking as a result of throat cancer surgery he underwent years ago, according to the report. But Sue Thurston says she has mixed feelings about Favre's move to Minnesota.
"I just love the guy, always have, he was my big hero," Sue Thurston said, according to the report. "But I like the Packers, too, and I hate the Vikings. It's just ... I don't like it. It just makes me sick."
The team's fans are feeling mixed emotions, too. But one vehicle for venting anti-Favre sentiment has been shut down before it started, for safety's sake.
The Milwaukee Burger Company in Eau Claire, Wis., floated the idea of burning Favre memorabilia at halftime of Monday night's Packers-Vikings game. The restaurant will donate $10 per item to a camp for young burn victims.
The Eau Claire Fire Department, however, saw a fire hazard in the making. As a result, the restaurant will be limited to burning just one cotton Favre jersey. The remaining Favre items will be boxed up and donated.
Meanwhile, in Minnesota, Percy Harvin, one of Favre's new targets, has been dealing with migraine headaches, according to the Minneapolis Star Tribune. He was forced to miss two practices last week and was listed as questionable for last week's game against San Francisco, but still managed to catch four passes for 51 yards and return four kickoffs, including one he ran back 101 yards for a touchdown.
"I was a little drained," Harvin said Tuesday, according to the report. "I got a little light-headed during the game but when you're out there playing football you try to block those things out. I did have a headache, was a little drowsy, got a little tired at times, but like I said, I try not to let that affect me."