Defenders Steve Tully and Scott Golbourne both saw red in the 5-1 defeat at Colchester and subsequently missed the 1-0 win over Swindon in midweek.
The Grecians appealed both decisions but the one-match bans stood. However, they are now back in contention to claim starting places in Paul Tisdale's team.
Billy Jones could be one of the players who makes way, but Tisdale may stick with the side that kept a clean sheet against the Robins.
That win practically assured the Devon club of another season in npower League One, lifting them to 12th place with 52 points.
Tisdale's men earned a 1-1 draw at Dagenham in September.
Source: PA
Source: PA