The U's have lost their last eight games and are just one point above their opponents, who are in the relegation zone.
Boss Joe Dunne goes into the game without Wordsworth after the midfielder picked up a 10th booking of the campaign during the 1-0 defeat to Doncaster at the weekend and starts a two-match ban.
Fellow midfielder Kem Izzet is a doubt after suffering an ankle problem at Doncaster last time out.
But defender Tom Eastman is hoping to make a return to the side after taking part in training this week. The 21-year-old has missed the last two games after suffering a dead leg in training on New Year's Eve.