Cohen must serve a one-match ban after he was booked for the fifth time this season in the 1-1 draw against Middlesbrough.
Dexter Blackstock is pushing for a recall to the starting line-up after a full week of training. The striker made his comeback from a month out with a knee injury with a late substitute appearance at the Riverside Stadium.
The match has seen Forest join forces with Doncaster to launch a ground-breaking scheme designed to integrate opposition supporters and attract more families to football. Fans of both clubs will sit in a section of the Brian Clough Stand.