The planned transfer of Eric Maxim Choupo-Moting from Hamburg to Koln fell through when the Bundesliga clubs failed to meet the deadline because of a broken fax connection.
Now, the clubs are hoping the German football league (DFL) will make an exception and allow the deal to go through. The DFL will make a ruling later this week.
The contract between Choupo-Moting and Koln arrived at the DFL 12 minutes after the transfer window closed Monday at 6 p.m.
Choupo-Moting had chosen Cologne over West Bromwich Albion with half-hour to spare. But when his father and agent tried to fax the contract before the deadline, the connection broke down. The documents eventually arrived 12 minutes late.