Crawley headed home with an aching sense of a chance missed after a 1-0 loss to Manchester United.
A defiant display from the proud non-leaguers nearly gained its just reward when Richard Brodie guided a stoppage-time header against the bar.
The hosts survived though, despite being so poor, ending the game with Wayne Rooney and Javier Hernandez occupying wide positions, either side of an ineffective Gabriel Obertan and an anonymous Bebe.
Indeed, Rooney's frustrations bubbled over into a cynical lunge on Kyle McFadzean that earned the England striker a yellow card.
It will be of no consolation to Crawley that Brown's header was a collector's item. His first goal since October 2008 and only his fifth in over 350 games for the Red Devils.