Just over a month ago, Donovan McNabb signed what was thought to be a long-term contract extension with the Redskins. Now it appears that “Tom Brady-esque” money was little more than a mirage in the desert wasteland of Washington DC sports.

According to multiple anonymous sources cited by The Washington Post, Redskins Coach Mike Shanahan has benched McNabb, his “franchise quarterback,” in favor of Rex Grossman for this Sunday’s game against the Cowboys.

McNabb — who hasn’t been a healthy scratch since his rookie season — said on Wednesday that he would have expected “professionalism and communication” by being informed in advance. After declining to publicly name a starter in his last press conference, Shanahan does not seem to have granted him that respect…