Craig Davies will miss Chesterfield`s Carling Cup clash against Middlesbrough through suspension.
The striker must serve a three-match ban following his controversial red card in the Spireites` 2-1 home win over Barnet on the opening day of the League Two campaign.Watch Chesterfield v Middlesbrough Soccer online stream, 10/8
Blues boss John Sheridan will not want to make too many changes for the televised first-round tie.
Derek Niven could force his way into the side, depending on the fitness of Morris and whether Sheridan opts to partner Drew Talbot with Jack Lester in attack.
Jordan Bowery and Scott Boden are also alternatives in the absence of Davies.
Middlesbrough travel without stricken midfielder Willo Flood and a number of players on international duty.
Flood dislocated his knee in Saturday's 3-1 defeat to Ipswich after colliding with team-mate Matthew Bates and is expected to be on the sidelines for six months.
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The news comes as a major blow to manager Gordon Strachan, who had seen Flood recently return from a knee-ligament lay-off.
Julio Arca could come in for the 25-year-old but Strachan is definitely without Kris Boyd, Stephen McManus, Barry Robson, Kevin Thomson and Tarmo Kink due to international call-ups.
Brad Jones has been named in the squad despite mounting transfer speculation over his future at Boro but Gary O'Neil is still out.
Rhys Williams (pelvis) is a long-term absentee with Boro expected to give their younger players a run-out.