Benson - who has scored 17 times this season - may play with a cast after breaking his nose last Saturday against Morecambe but Phil Walsh could make his first start for the club if Benson is ruled out.
Midfielder Peter Gain collected his 14th booking of the season last weekend and will get a three-game ban if he gets booked again before the end of the campaign.
That would rule him out of the play-offs if the Daggers qualify.
Defender Will Antwi is back in training after four months out with an ankle injury and could be on the bench on Saturday but Stuart Thurgood is still struggling with a knee injury that threatens to end his season.
