"What two knowledgeable NFL people described earlier this week as an "issue" in the Minnesota Vikings locker room was described Wednesday by a third informed person as a "schism."

The issue is quarterback Brett Favre, and the schism is the preference that certain Vikings players have for specific quarterbacks.

Sources with knowledge of the Vikings locker-room dynamics say some players believe Tarvaris Jackson gives the Vikings the best chance to win, while other players believe Sage Rosenfels gives the team the best chance to win -- which is one of the new twists to this storyline. In the words of one NFL source, Favre has "little support" in the locker room as Minnesota prepares for its Monday night preseason game against the Houston Texans.

Favre, who signed only last week, struggled in his one preseason appearance but could easily win backers with improved performance and victories. But as it now stands, one NFL source said these locker-room issues stem back to long before the team signed Favre, and it's possible they will not be going away any time soon unless Favre can completely silence them with his play.

Vikings coach Brad Childress was even asked Wednesday about the speculation.

"I've seen the same reports you've seen," Childress said. "Those are opinions. It's hard to shoot holes in an opinion. It's just that -- an opinion. I certainly don't see it.""