Liam O'Brien starts for the Sky Blues while Lee Burge misses out due to injury as City face Crewe Alexandra at Gresty Road
Under-18s 'keeper Tom Bilson fills the void on the bench as Mark Robins iis forced to make just one change to the side that drew with Luton on Tuesday.
Elsewhere, City are unchanged with Grimmer, Hyam, McDonald and Haynes across the defence.
Captain Michael Doyle is partered by Tom Bayliss in the middle with Jordan Shipley and Peter Vincenti out-wide.
McNulty and Clarke-Harris start up front.
Coventry City XI: O'Brien (GK); Grimmer, Hyam, McDonald, Haynes; Vincenti, Bayliss, Doyle (C), Shipley; McNulty, Clarke-Harris.
Subs: Bilson (GK), Stokes, Kelly, Reid, Barrett, Biamou, Ponticelli.
Crewe Alexandra XI: Garratt (GK); Ng, Ray (C), Sterry, Bakayogo; Nolan, Green, Kirk, Pickering; Miller, Bowery.
Subs: Richards (GK), Raynes, Dagnall, Ainley, Lowery, McKirdy, Barlaser