ESPN auditioned Brett Favre for their Monday Night Football opening, but sources say he struggled and has been ruled out.

Favre likely would have commanded a salary similar to Jon Gruden's $6.5 million.

ESPN has had All-Pro tight ends Jason Witten and Greg Olsen in for auditions. Both are under contract to play next season, while the network also has considered Kurt Warner, Matt Hasselbeck, Louis Riddick and the recently retired Joe Thomas, among others.

The auditions have been done with Joe Tessitore on play-by-play.