Ranson also revealed that the club had an option to buy England midfielder Jordan Henderson and Chelsea midfielder JackCork following successful loan spells at the Ricoh Arena.
Coventry continued to press and looked like they would grab a deserved win when McSheffrey beat JackCork to a loose ball on the right flank, turned into the box to evade two more challenges and curled a delicate left-footed effort beyond Grant into the top corner.