20-year old forward Charles Vernam set to make Sky Blues' debut...
Russell Slade elects to make six changes from Tuesday night's side, reinstalling Lee Burge in goal and Nathan Clarke and Farrend Rawson in defence.
Ben Stevenson and Callum Reilly will start in midfield, with George Thomas and Ryan Haynes either side. Debutant Charles Vernam starts in the No.10 position, while Marcus Tudgay and Stuart Beavon operate up top.
Jordan Turnbull and Dion Kelly-Evans drop down to the bench.
Burge (GK), Willis (C), Clarke, Rawson, Haynes, G.Thomas, Stevenson, Reilly, Vernam, Tudgay, Beavon.
Subs: Charles-Cook (GK), Turnbull, Di. Kelly-Evans, Bigirimana, Rose, Reid, Jones.
Northampton Town: Smith (GK), Buchanan, Diamond, Anderson, Boateng, Richards (C), O'Toole, Nyatanga, Taylor, Eardley, Williams.
Subs: Cornell (GK), P.Anderson, Wylde, Beautyman, Phillips, McDonald.