Harley, who signed for Swansea last week, has rejoined the Grecians on loan for the rest of the season and after missing last week's win over Walsall, Tisdale will have to decide whether to recall his star midfielder or keep a winning side.
Goalkeeper Ben Hamer, who signed on-loan from Reading last week, is set to continue between the sticks after a successful debut against the Saddlers.
Striker John O'Flynn has staked his claim for a recall to the starting line-up after coming on as a substitute to win a penalty last weekend and scoring for the reserves in midweek.
Defender Troy Archibald-Henville also scored on reserve-team duty and is pushing for a starting place.
Source: PA
Source: PA