David De Gea’s £29m move from Manchester United to Real Madrid has collapsed because the necessary paperwork was not submitted in time.

No official announcement has yet been made by either club.

As part of the deal to sell De Gea to Real, United were planning to bring Keylor Navas in the opposite direction.

There is no precedent for Spanish clubs being given additional time to conclude transfers as there is in England.

Blame for the failure to complete the deal is already being apportioned.

Who says what?

Reports in Spain claim United were responsible for the deal collapsing.

The line is that they did not get their paperwork to Spanish Football Federation headquarters until a minute after the 23:00 BST deadline.

In their defence, United say they have a receipt that proves they submitted the relevant documents in time.

It remains to be seen whether Real will appeal to world governing body Fifa, who are responsible for sanctioning international transfers.

Other reaction?

The internet naturally had its say…

Internet reacts to De Gea saga

And the tweets only intensified once stories of a technical glitch at the Madrid end began to surface…

Internet reacts to De Gea saga

What now for De Gea?

Well, if Real Madrid don’t appeal, or they do appeal and fail to push the transfer through, then he’ll be back at Old Trafford competing for a place in the United starting line-up.

He’ll be up against Sergio Romero, the Argentina number one, and Victor Valdes, who, like De Gea, was linked with other clubs but stayed.

First, though, De Gea, who has not played for United this season, must turn his attentions to international duty with Spain.

They have two Euro 2016 qualifying matches to negotiate, at home to Slovakia on 5 September and in Macedonia on 8 September.

What about United?

They seem pretty relaxed about it all.

If De Gea ends up staying, then they have a world-class keeper to call on. If he goes, then the Navas deal could still happen.

Unlike Real Madrid, United have a few more hours to get stuff done.

The transfer window may be shut in Spain, but it remains open until 18:00 BST on Tuesday for Premier League clubs.

What else have they been up to?

Monday was mostly about letting players leave…

  • Mexico striker Javier Hernandez

    joined Bundesliga side Bayer Leverkusen

    for £7.3m

  • Belgium winger Adnan Januzaj also moved to Germany, agreeing a season-long loan with Borussia Dortmund
  • Danish goalkeeper Anders Lindegaard joined West Bromwich Albion on a two-year deal
  • And centre-half Tyler Blackett agreed a season-long loan deal with Scottish giants Celtic

But the move that caught a lot of people by surprise involved a French teenager by the name of Anthony Martial.

It appears United are willing to pay as much as £36m to get him.

Who is he?

A striker with Monaco. He’s only 19, but he’s got bags of potential. He’s even been likened to Thierry Henry.

The Sun's early edition suggested United were panic buying by going after Anthony Martial

The Sun’s early edition suggested United were panic buying by going after Anthony Martial

Nevertheless, £36m is a lot to pay for a youngster.

According to French football journalist Philippe Auclair, the size of the transfer fee has left “people speechless in France”.

“He’s got good technique, good skills, he’s a good finisher, but he is still a raw product,” added Auclair. “We don’t know how far he can go.”