Man Utd sign Odion Ighalo on loan until end of season
West Ham sign Hull forward Bowen for £20m
Aston Villa sign Baston from Swansea
Angelino joins RB Leipzig on loan from Man City
Wigan defender Robinson's move to AC Milan breaks down
Lampard says Giroud is staying at Chelsea
Arsenal sign defender Soares from Southampton
Sheff Utd sign striker Zivkovic on loan from Changchun Yatai and defender Panos Retsos on loan from Bundesliga
Rochdale defender Matheson, 17, joins Wolves for £1m
Deadline is at 23:00 GMT in England, midnight in Scotland
Text 81111 (UK only)
I work in Mayfair and just seen Coutinho enter the private medical centre opposite my office, followed by someone in a blue tracksuit, Chelsea maybe??
Marc, London
That would certainly bring Deadline Day to life!
Image source, Getty ImagesRight. Back to our deadline day teasers. Any idea who this player is?
Guesses to #bbcfootball.
Answer at half past.
Mandeep Sanghera
BBC Sport
There are unlikely to be any major ins and outs at Liverpool on transfer deadline day today.
On the signings front, the Premier League leaders did their main business by bringing in winger Takumi Minamino from RB Leipzig at the start of the month.
In terms of outgoings, the Reds knocked back approaches from Roma and Sevilla to take Xherdan Shaqiri on loan earlier this month. They insist they will not consider selling the attacking midfielder until the summer as they remain on course for the top-flight title and are still in the Champions League and FA Cup.
Image source, Getty ImagesTransfer deadline day would not be transfer deadline day without a bit of Harry Redknapp.
Earlier this week we asked BBC Sport readers to send in some questions that we could put to the former Tottenham boss and we will have his answers to those from 09:30 GMT.
#bbcfootball
Michael Grimwood: Would like to see Curtis Jones get a loan move today. Somewhere like Southampton would be ideal to get him some game time in the Prem.
All the angles: Re-live Curtis Jones' stunning goal
No it's not the winter of 1992, but Eric Cantona still goes down as a great signing as far as Liam Gallagher is concerned.
Wonder if Liam is asking Eric where he got his dressing gown from?
Image source, @liamgallagher
Image source, Getty ImagesSouthampton are not willing to allow Denmark midfielder and club captain Pierre-Emile Hojbjerg, 24, to leave amid interest from Tottenham.(Star), external
#bbcfootball or 81111
Tommy J Scott: Just saw Teddy Sheringham at a Greggs in Deansgate. He's still young enough for another Utd stint...
John Greenwood: Surely someone called Britain has to leave a European Side on #TransferDeadlineDay, external for an undisclosed fee? #BrexitDay, external
Good shout John. Can anyone think of any particularly apt Brexit-related transfers we might see today? We've had a look at who might leave and remain here.
Henry Winter
Chief Football Writer for the Times on BBC Radio 5 Live
West Ham need reinforcements. They need pace. They're being linked with Jarod Bowen who can come in and give them a little bit more energy.
They've got so many good players in that team that are under achieving - the two centre backs in particular. Fortunately they've got Mark Noble, who's got the huge heart and intelligent but he doesn't have the legs to last 90 mins. Declan Rice is underachieving too and he's got to step up.
Simon Stone
BBC Sport
West Ham are trying to conclude a £20m-plus deal for Hull City forward Jarrod Bowen.
Crystal Palace had appeared favourites to sign Bowen, one of the most highly rated players outside the Premier League.
But West Ham, desperate to reinforce David Moyes’ squad for a battle to avoid the drop, have edged in front.
It has been suggested West Ham have arranged a medical for this lunchtime but club sources have said the deal is still not done.
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Ever wondered what it is like doing deals on deadline day? Well, you are in luck, here's Lutz Pfannenstiel, sporting director at Bundesliga club Fortuna Dusseldorf, talking to BBC World Service.
"You have to be creative in January. In our case the budget is small and you don’t have many options so you have to look behind the scenes to get in a player on loan. Sometimes you strike gold.
"I remember when I was at Hoffenheim we had a very difficult situation and had the idea to bring in Andrej Kramaric from Leicester City who turned out to be an absolute winner, helping us to stay up in the Bundesliga and we went on to sign him permanently. So sometimes there can be fairytale deals in winter."
Image source, Getty ImagesTransfer spending by Premier League clubs in January increased from last year after two big deals were confirmed on the penultimate day of the winter window.
Manchester United have completed the biggest deal so far, signing Portuguese midfielder Bruno Fernandes from Sporting Lisbon for £47m, while Sheffield United brought in Norwegian midfielder Sander Berge from Belgian side Genk for a club record fee, reported to be £22m.
With just one day remaining, the total outlay by top-flight clubs stands at £185.1m, an increase from the £180m spent last year, but a long way off the £430m record from 2018.
Head here to find out everything you need to know about today
Image source, Getty ImagesIt is indeed Kevin de Bruyne!
Well done to the below who were among the first to get it correct.
Chris Arkwright: Clue made me get it, Kevin De Bruyne (such a pity as a Chelsea fan)
Leslie Hickens: Kevin de Bruyne
Matthew Ball: That’s Kevin De Bruyne surely?
I'll dig out another guess who for just after 09:00.
OK it has just gone 08:30 GMT so as promised, time to find out who is behind the big yellow question mark at 08:01...
#bbcfootball or text 81111 (UK only)
Stevie M: Bowen is the real deal. Every bit as good as the overrated Maddison for me. Will be a class signing for West Ham. They badly need a striker though - Lawrence Shankland [Dundee United striker] would be ideal.
Odsonne Edouard is surely the perfect fit for United??? 40 goals in 73 appearances for Celtic and he's only 22. Plus I've just seen him arrive at Manchester Airport (ok so I made that last bit up...) but if you're reading this looking for tips Mr Woodward, then he's your man!
Ste Greenow in Warrington
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BBC Radio 5 Live
BBC Sport's Simon Stone speaking on BBC Radio 5 Live: "I think Chelsea are tying to yank on the string of Napoli forward Dries Mertens this morning and that may be key to unlocking a few deals.
"Edinson Cavani is another one they will go after and Manchester United are also after a striker.
"A remarkable deal would be Antonee Robinson heading to AC Milan. He is Wigan's best player and only left Everton in the summer.
"It seems at the moment that English-based players are de rigueur in Italy given the number of stars that are already at Inter.
"West Ham have suddenly emerged as the suitors for Jarrod Bowen. It had looked like Crystal Palace but I think West Ham will get him."
Get involved #bbcfootball
Back to the little teaser at 08:01. Here's a couple of your guesses:
Malcolm Elford: This is obviously the massive flop that was Fernando Torres
ShinySix: Fernando Torres
And those guesses are wrong.
Here's a clue: He made just three Premier League appearances for the Blues before departing in 2014.
Southampton
Ben Stanfield - Total Saints Podcast
It looks set to be a quiet deadline day on the south coast, with only Cedric Soares on the move - leaving Saints to join Arsenal on loan.
Cedric, who is out of contract at St Mary’s this summer, has largely split opinion during his time at the club. Ultimately, the ‘dangling carrot’ of a loan fee has encouraged Saints to let him move on earlier.
Kyle Walker-Peters’ Wednesday arrival means it’s ‘one in, one out’ for Ralph Hasenhuttl this window, and that’s how it’s expected to now stay.