Monk has not featured for Paulo Sousa's men since October 31 because of a calf injury but is back in training and poised to make his comeback against the Royals.
Another to return is midfielder Mark Gower who has also been out of action since the end of October with a troublesome hamstring injury.
Sousa has no other injuries or suspension problems to contend with as his men look to keep up their pursuit of second-placed West Brom.
Sousa is likely to stick to playing with a lone striker, meaning that Lee Trundle, whose loan from Bristol City ends at the end of the month, will again have to settle for a place on the bench.
