Transfer deadline day is here - and it's sure to be one of the most exciting yet.

Arsenal, Liverpool and Manchester City look set to dominate headlines on the final day with the futures of Alexis Sanchez and Philippe Coutinho.

Talks are underway between Arsenal and City for Sanchez, who is valued at £70 million, while Barcelona are still trying to prise Coutinho away from Liverpool.

Jurgen Klopp has rejected three bids so far for the Brazilian but following the signing of Alex Oxlade-Chamberlain, it's expected the Liverpool manager will finally cave.

Barca will make a final offer of €160 million for Coutinho, which the Reds would be absolutely crazy to reject.

But whereas Liverpool can enter transfer deadline day relatively calm, Arsenal once again face a race against time to make some much-needed signings.

Should Sanchez join Oxlade-Chamberlain in leaving the club, Arsene Wenger needs to bring in at least one top-class player to ease the pressure.

And it would appear the Frenchman has identified his target: Paris Saint-Germain's Julian Draxler.

According to the Telegraph's Matt Law, Arsenal have opened talks to sign the Germany international to prepare for Sanchez's seemingly inevitable departure.

This is despite Draxler's agent insisting earlier this month that he wouldn't be leaving the Parisians this summer.

So what's changed? Well, with Kylian Mbappe set to complete a season-long loan move from Monaco, PSG have told Arsenal they wouldn't rule out a move.

Negotiations are at an early stage, but the Gunners are confident a deal can be struck before the deadline.

Swapping Sanchez for Draxler would be a decent piece of business for Arsenal given the former has under a year remaining on his contract and wants to leave.

Draxler, on the other hand, has the makings of a world-class midfielder and at the age of 23 has plenty of time to grow.

Wenger can't stop at Draxler, though. Sunday's 4-0 defeat against Liverpool exposed Arsenal's frailties in the middle of the park and proved they're desperate for an out-and-out defensive midfielder.

Grzegorz Krychowiak would have been the perfect signing, but the Poland international has completed a shock loan move to West Brom.

Bayern Munich's Renato Sanches is another midfielder Wenger should be looking into signing yet the 20-year-old is primed to join Swansea City.