Forest boss Steve Cotterill has a handful of players pushing for starting roles.
Cotterill has no new problems following the 1-0 defeat to Cardiff on Saturday.
Midfielders Paul Anderson and Andy Reid and striker David McGoldrick all made an impression as second-half substitutes in the Welsh capital.
Meanwhile, Dexter Blackstock is waiting to discover when he will be reintroduced back into the first-team fold. The striker is fit again after a year out with a serious knee injury.
George Boateng is also nearing a return after being sidelined since the end of August with a knee problem.
Fellow midfielder Radoslaw Majewski, an unused sub against Cardiff, is another option should Cotterill opt to make changes.
Leeds defender Darren O'Dea will return to contention.
The Irish centre-half missed Saturday's home defeat to Barnsley through suspension and manager Simon Grayson must decide whether to recall him or stick with Tom Lees, who partnered Paddy Kisnorbo in O'Dea's absence.
Grayson also faces a selection dilemma up front. Luciano Becchio made his first league start since April at the weekend alongside leading goalscorer Ross McCormack, with Andy Keogh dropping to the bench.
McCormack ended his seven-game goal drought against Barnsley, but was replaced midway through the second half, while another forward, Ramon Nunez, stepped off the bench soon after the break and may feature more prominently in Grayson's plans.
Left-sided midfielder Danny Pugh is pushing for a recall to the starting line-up after returning to the bench at the weekend following a hamstring strain.
Leeds have not won any of their last four home games, but are chasing a third straight league win on the road.