Late deals: Slimani to Newcastle, Sorloth to Palace, Hugill to West Ham, Andy King to Swansea
Riyad Mahrez staying at Leicester despite Man City interest
Swansea sign Andre Ayew from West Ham for cub-record £18m
Stoke sign Badou Ndiaye for £14m
Arsenal sign Pierre-Emerick Aubameyang for £56m
Olivier Giroud joins Chelsea from Gunners; Spurs sign Moura
Dortmund sign Chelsea's Michy Batshuayi on loan
Your club's January window in gifs - use #bbcdeadlineday
Transfer window shuts at 23:00 GMT in England, midnight in Scotland
Everton v Leicester (19:45 GMT)
Leicester City
Any move to Manchester City may well be off but Riyad Mahrez is not included in their matchday squad at all tonight. Get that agent on the phone!
You can get team news from all of tonight's games over here.
#bbcdeadlineday or 81111 on text
Alexsander: Honestly this has been the most exciting deadline day in the January window since 2011. And there are still 4 and a half hours to go.
Rupert: Any news on another signing for Arsenal (greedy, but would love a defender!).
Frode: Being a Liverpool supporter on transfer deadline day is about as exciting as watching the face of someone having a bowel movement. Awkward, pointless and disturbing but you still can't look away.
Ah, the many emotions of Transfer Deadline Day...
Here is our developing story on Lucas Moura, who has joined Spurs from PSG for a fee in the region of £25m.
And you'll find some decent stats on the 25-year-old below...
Championship
Image source, Getty ImagesBen Marshall has been on the move...
The transfers are flying through in the EFL today. Here's a little recap of the best moves you may have missed.
Championship:
Angus MacDonald [Barnsley - Hull] Undisclosed
Costel Pantilimon [Watford - Nottingham Forest] Loan
Ashkan Dejagah [Unattached - Nottingham Forest]
Ben Marshall [Wolves - Millwall] Loan
Tyler Roberts [West Brom - Leeds United] £2.5m
Newcastle United
Newcastle fans have been impatiently waiting for news all day and here's some - but it's an outgoing move I'm afraid.
Midfielder Henri Saivet has gone on loan to Sivasspor of Turkey. Freed up a bit of wage budget?
Don't forget that there are seven Premier League games kicking off in just over an hour as well.
We'll send you the link for live page for those in a bit but here's Gary reminding you to tune in later as well...
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You can also tune into BBC Radio 5 live from 19:00 GMT for coverage of Tottenham v Manchester United.
Winger Lucas Moura has signed a contract at Tottenham until 2023.
The Brazilian has signed from PSG.
There's a done deal incoming
(I need to get to the end of Spurs' social media reveal. Hang on...)
St Johnstone have completed the loan signing of Manchester United's Matty Willock.
The 21-year-old midfielder was with Dutch top flight club Utrecht earlier this season.
He is Saints manager Tommy Wright's second signing today, following the earlier capture of Fulham’s George Williams.
We asked you to choose which player is the most exciting January signing.
With 40% of the vote, your winner is...
Image source, Getty ImagesPierre-Emerick Aubameyang!
Chelsea
What's this? A new striker? In pure footballing terms, you'd have to think Arsenal will be the happiest in the Great Dortmund-Chelsea-Arsenal Striker Swap.
That said, £18m for Olivier Giroud looks like a bit of a steal. The burning question is whether he is someone Conte actually wanted in the first place. The optimist in me tells me he'll suit Chelsea's style much better than Arsenal's, which means we might actually see him get some meaningful minutes in the League and Champions League.
The pessimist in me wonders if letting Batshuayi go just as he was building some confidence could come back to haunt us. But who knows? Maybe we'll grab Lewandowski and Cristiano Ronaldo in the next couple of hours...
Chris Norman, Chelsea Football Fancast
Dafydd Pritchard
BBC Sport Wales
Swansea City's loan move for Leicester midfielder Andy King appears to be gathering pace.
If that deal does go through, it would end the Swans' hopes of signing Liverpool winger Lazar Markovic on loan.
Premier League clubs are only allowed to have two players on loan from other Premier League clubs at the same time, and striker Tammy Abraham is currently on loan at Swansea from Chelsea.
#bbcdeadlineday or text 81111 (UK only)
We've had a few new entries into the chant chart...
But c'mon, you know the score - leave us your name!
Re Arsenal signings and chants. I think Pierre-Emerick would suit the old Muppets tune... Aubameyang do do d’do do, Aubameyang do do-do do... repeat until bored.
Anon.
Swansea doing good work on the chant-potential transfers front: "Twoooooooooo Ayews - ooh ooh, ooh ooh!" To the tune of The Who's 'Who Are You'.
Glyn, Swansea
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Someone suggested a moment ago that Arsenal's chants will be hindered now Sanchez and Giroud have left and Aubameyang and Mkhitaryan have come in.
You guys have pulled out the stops to come up with some decent new tunes...
If you're just joining us, here are the big deals so far.
Image source, Getty ImagesSorry.
I'VE DONE IT AGAIN. I'VE MISSED THE ON-THE-HOUR COUNTDOWN.
I'll be put on the BBC transfer list myself if I'm not careful.
So, only 15 minutes late this time...
Adam Blackmore
BBC Radio Solent sports editor
Image source, Getty ImagesSouthampton’s signing of Quincy Promes looks set to be delayed until the summer. The Saints are happy to pay the fee and the player is happy to come but Spartak Moscow can’t replace him in this window and are set to block the move for now. Southampton hope to get agreement on a summer move.
At 5:21, we saw the Daily Mirror reporting that Riyad Mahrez had gone AWOL.
We thought he might be spotted looking forlorn at Manchester Piccadilly station after his move to City was called off.
Well, here we are:
John Bennett
BBC Radio 5 live
Senegal international Badou Ndiaye is expecting his move to Stoke City from Galatasaray to be confirmed before tonight’s game against Watford.
The midfielder is now on his way back to England after a quick trip to Paris this afternoon. He needed to leave the UK today and then re-enter the country to complete his work permit paperwork after arriving yesterday on a temporary visa. There were concerns that work permit issues could stop the deal.
His representatives are confident that everything is in place but there’s no confirmation from the club. As reported yesterday, the fee would be £15m.