And that's us done for the day.

A mammoth effort from clubs and fans up and down the land. The BBC Sport website is the place to reflect on the moves which mattered.

Cast your eye on the transfers page here to catch up on all of the deals.

Image source, Premierleague

Benoit Assou-Ekotto left Tottenham today and as a free agent could be allowed to join another club in the Premier League outside of the window.

Andy - Season ticket holder: I'm glad QPR haven't signed anyone we already have good players. All we need is a manager with modern ideas to get the best out of the squad.

Andy: Good luck Darren Fletcher, all the best for the future at WBA you served United well, all the best.

James, Finsbury Park: Kellett to United is the strangest loan since Conor Thomas from Coventry to Liverpool in 2011. He never played a minute.

A late one - Norwich sign midfielder Tony Andreu from Hamilton, following recently-appointed Canaries boss Alex Neil to Carrow Road.

Image source, Reuters

Former Everton midfielder Tim Cahill will not be coming back to the Premier League - he has joined Shanghai Shenhua after the New York Red Bulls announced he had left the club by mutual consent.

The 35-year-old said: "I've done the Premier League, I've done America. New York was amazing for me but China is a growing market in football.

"You see in the Asian Cup quarter-final game that we played against China, millions of people watched it and I'm someone who is embracing culture and a different aspect of life.

"I'm at an age where I want to give something back to football and still play at a high level.

"I think it's exciting. To still be in demand and have the offers I've had is special but this will be massive for me as a player on and off the park."

Hull City

Hull vice-chairman Ehab Allam on the signing of Dame D'Noye:

"It's taken us three weeks and we almost missed the deadline so it's been fantastic news to get it over the line. It's just been a long day of negotiations, very stressful. It's broken down on several occasions but Steve Bruce was in France with the player and he managed to get it over the line."

Stuart Armstrong and Gary Mackay-Steven have joined Celtic from Dundee United after the clubs agreed deals on transfer deadline day.

Celtic had offered United £250,000 to take winger Mackay-Steven, 24, now rather than wait until the summer, a move that had already been agreed.

And the Glasgow club agreed a deal for both players of £2m plus add-ons.

West Ham

West Ham co-chairman David Gold: "Sorry for keeping you up late but at the last moment the main deal collapsed and the rest folded like a pack of cards. Stay strong.

"I'd like to thank David Sullivan and Sam Allardyce for their efforts to secure new players during this window. However, no matter how hard you tried there are people out there that you just can't do business with."

Who has been the best signing of the January window? Juan Cuadrado to Chelsea tops the list according to you, winning 24.1% of the vote. He edged out new Manchester City striker Wilfried Bony (15.6%) and Sunderland's Jermain Defoe (14.8%).

Thanks for voting.

Bentley Baxter: Not only did QPR sign no players on deadline day, they also alienated the one signing they did make in Zarate. Disastrous day.

Gregory P: Think Derby have had a great day, strengthened the squad whereas the other top championship clubs haven't

Lloyd Grose: Kellett was terrific for us, but can't say I'm not shocked @ManUtd have taken him! #pafc

We take it from that announcement - and various unconfirmed reports - that West Brom have failed in their bids to sign Carlton Cole from West Ham and Martin Olsson from Norwich.

No confirmation as of yet though.

West Brom

David Ornstein told you the news a while ago but official confirmation that Darren Fletcher has signed a two-and-a-half-year deal at West Brom.

Hull City

Steve Bruce is a man of his word. Hull confirm the signing of Senegal international striker Dame N'Doye from Lokomotiv Moscow for an undisclosed fee. The 29-year-old has penned a two-and-a-half-year deal.

Hull City

It seems that Hull's pursuit of a striker has paid off. Steve Bruce has just texted the BBC's Simon Clark to say the Dame N'Doye deal to Hull City is done. Bruce has spent the day in Paris on the deal.

We are awaiting official confirmation that it is all done and dusted.

Man Utd

Plymouth Argyle: "Sometimes you have to accept missing out on a player. Good luck at @ManUtd, @AndyKell13. We'll always have this.. bit.ly/AndyKellettGoal."

Andy Kellett's only career goal came for Plymouth against Northampton Town in League Two.

Oldham Athletic have added another striker to their squad, with Dagenham's Rhys Murphy joining for an undisclosed fee. Manchester United were presumably keen on a loan move.

Andy Kellett was number 43 for Bolton and has made one appearance for Wanderers this season. A quite bizarre signing.

I can't imagine Louis van Gaal was at Rotherham last week to see him play 50-odd minutes in a 4-2 defeat at Rotherham...

West Ham

West Ham co-chairman David Gold:, external "Sorry for keeping you up late but at the last moment the main deal collapsed and the rest folded like a pack of cards. Stay strong."

Man Utd

There's something very odd about this. Bolton defender Andy Kellett signs for Manchester United having recently returned from a three-month loan spell at Plymouth.

That's United signing players from Salford City and Bolton in the last few weeks. Very odd...

Man Utd

Possibly the oddest signing of the day! Manchester United have signed young defender Andy Kellett on loan from Bolton Wanderers until the end of the season, with Saidy Janko going the other way.