Bristol City have drawn 0-0 with Portsmouth after a game of few chances at Ashton Gate.
The Robins' Neil Kilkenny had the ball in the net after the hour, but was adjudged to have fouled Pompey keeper Jamie Ashdown.
Benjani could have won it for the visitors late on, but misdirected his header over the bar.
City face a trip to Doncaster next Saturday, while Portsomouth host Cardiff.