Relegation-threatened Exeter will be without suspended midfielder James Dunne for the crucial home game against promotion-chasing Charlton.
Dunne was dismissed for two bookable offences in the 3-1 defeat at relegation rivals Tranmere last week, which ended the Grecians' nine-match unbeaten spell and he must now serve a one-match ban meaning City boss Paul Tisdale will be forced to change his starting line-up.
City also wait on the fitness of veteran striker Marcus Stewart (hamstring) after he went off at half-time at Prenton Park.
His place went to on-loan Rotherham striker Ryan Taylor, who could be poised for a start if Stewart fails to prove his fitness.
City are two points and a place above fourth-bottom Tranmere with three games remaining.
Charlton have injury doubts over Nicky Bailey, Kyel Reid, Akpo Sodje and Sam Sodje.
Skipper Bailey has been struggling with a shoulder injury of late and succumbed to the problem during last weekend's 1-0 defeat by Norwich.
Reid would have been Bailey's likely replacement on the left wing but he is nursing an ankle injury.
Striker Akpo Sodje suffered a thigh strain against the Canaries and is unlikely to be fit while his older brother, defender Sam, has a knee problem.
But top scorer Deon Burton has recovered from a knee injury and should start.
Goalkeeper Rob Elliot is fit after a groin injury but Darren Randolph has played well in his absence and should keep the gloves while Leon McKenzie (thigh) Grant Basey (ankle) and Kelly Youga (knee) are still out.
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