With Bentley ruled out for the next three games, Stimson is likely to call upon one from Stuart Lewis, Andrew Crofts and Adam Miller to fill the gap in midfield.
Striker Simeon Jackson is also rated 50/50 for tonight's clash, and will face a late fitness test to determine his inclusion in the side.
If he fails to make it, Stimson has a number of options available to him.
Andy Barcham has been operating on the left of midfield in recent games, but could be moved forward to replace Jackson in attack, with Albert Jarrett slotting in on the left.
Or Stimson could use the match to give young Luis Cumbers a league start. Cumbers has impressed for the reserves this season and could be given his chance tonight.
But the most likely replacement would be the returning Mark McCammon. The big striker has looked lively from the bench in recent matches and is favourite to partner Gary Mulligan up front tonight.