The central defender picked up his fifth booking of the season in the Boxing Day defeat to Doncaster and will serve a one-match ban.
Mvoto serves his second suspension of the season having already been sent off against Crawley.
Dickov tried to claim a case of mistaken identity, insisting James Wesolowski was the offender, but Latics have no right of appeal.
Fellow defenders Connor Brown and Carl Winchester will battle it out for a place at the back.
Robbie Simpson is also suspended and serves the second of a three-game ban following his red card at Yeovil last weekend.
