Oldham boss Paul Dickov will be without the services of Reuben Hazell and club captain Sean Gregan for the visit of Leyton Orient.
Hazell received his fifth yellow card of the season during the 0-0 draw with Sheffield Wednesday and will serve a one-match-ban, while Gregan remains sidelined with a knee injury and is yet to return to training, meaning Jason Jarrett is likely to fill the void in the heart of the defence.
Warren Feeney is also a doubt after failing to recover from an ankle injury as quickly as expected and will undergo a scan to assess the extent of the problem.
Chris Taylor is likely to continue in a supporting role to Oumare Tounkara up front with Dean Kelly on the bench.
Dickov is unlikely to involve himself in the squad just yet as he continues to build up his fitness in training.