The goalkeeper had agreed to extend his loan deal at Swansea City until the end of the season but due to the adverse weather on Monday was unable to get the paperwork completed on time.
Huw Jenkins and his Coventry counterpart both wrote to the football league to get dispensation due to these circumstances but were turned down meaning that the keeper will return to the Ricoh Arena.
A statement on the official site said “Despite both clubs starting the loan process before the 5pm deadline, the Football League would not allow the loan deal to go through.
Both club chairmen wrote to the Football League to ask for special dispensation due to the adverse weather conditions – as was granted by the Premier League to the likes of Arsenal – but the club was left bitterly disappointed that the Football League upheld its original decision.
Due to the loan regulations, Dimi will also not be allowed to rejoin Swansea once the loan window opens again next week, leaving Swans boss Roberto Martinez to look elsewhere for cover for Dorus de Vries.”