Northampton boss Colin Calderwood and director of football John 'defensive' Deehan placed Vieira on the bench and he didn't get thrown into the action late on either.
Northampton lost the game 3-0.
Vieria (pictured) made his debut against York City for the Cobblers after he came on as a substitute in that game.
Also, former Wigan stopper Roy Carroll played in goal for Manchester, first choice Tim Howard was given the day off.