David de Gea's proposed transfer from Manchester United to Real Madrid has reportedly collapsed at the last minute.
United and Madrid had agreed a deal worth £29million ($44.5 million) for the sale of the Spanish goalkeeper, with Keylor Navas coming to Old Trafford as part of the agreement.
But Press Association Sport understands the necessary paperwork was not lodged in time with La Liga and the deal has therefore almost certainly fallen through.
Press Association Sport understands the 10-time European champions are still trying to resuscitate the deal but as it stands, De Gea will remain a United player until January at the earliest.
United insist they uploaded the requisite documents to FIFA's Transfer Matching System before Monday's 11pm deadline.
Sources at Old Trafford have rejected reports in Spain that they submitted their paperwork after the deadline and claim they have a time-stamp from FIFA as proof.
There was no mention of De Gea or Navas in a round-up of deadline-day transfers on La Liga's official website, which was published after 11pm.