Will Chelsea land a new striker? Will Arsenal finally bolster their midfield? And will Manchester United strengthen their defence? 
 
One of the most frantic days in the sporting calendar, today is transfer deadline day which sees Premier League clubs across England attempt to make their final player signings for the rest of the season.
 
With an 11pm deadline to complete deals, clubs face a race against the clock to finalise signings, with transfer fees between teams likely to run into tens of millions of pounds.
Here below, we pick out some of the most significant football transfer world records.
 
Unlikely to be beaten today, Real Madrid set the benchmark for a transfer fees during the summer transfer window in 2013 when they acquired the services of Gareth Bale for a record £85.3 million ($132.9 million), in turn setting a record for the most expensive football player, single transfer.
 
 
The fee for the Welsh international to Tottenham Hotspur moved him past his Real teammate Cristiano Ronaldo, for whom the Spanish giants doled out £80 million ($131.86 million) to Manchester United in 2009.
 
However, Swedish forward Zlatan Ibrahimovic can rightly argue a case for being regarded as the most valuable player of all time having commanded fees of £109.2 million (€138 million; $173.4 million) over the course of his career so far, earning him the title for most expensive football player (soccer player), combined transfer fees.
 
 
The highest fee paid for Zlatan was £40 million paid by Barcelona FC (Spain) to AC Milan (Italy) with Samuel Eto'o (Cameroon) moving in addition for the fee paid. Zlatan was most recently sold by AC Milan (Italy) to Paris Saint Germain (France) for a fee of £15.7m in the summer of 2012.
 
Strikers and midfielders traditionally attract larger fees, but there have been plenty of history-making deals that have seen players in other positions sold for eye-watering price tags.
 
In 2001 Italian stopper Gianluigi Buffon transferred between Serie A clubs Parma to Juventus in July 2001 for a fee of £32.6 million ($ 46.8 million), setting a record for most expensive football player (goalkeeper).
 
 
Meanwhile, the most expensive football (defender) in terms of a single transfer fee paid is Brazilian star David Luiz who was signed by Paris Saint-Germain from Chelsea for a reported £50 million ($85.4 million) back in June last year.
 
 
While there have been some big money deals done during this transfer window - the biggest  so being the £28m move for striker Wilfried Bony from Swansea to Manchester City – it’s looking unlikely that the record for the most money spent on transfer fees by football clubs from the same division during a single transfer window is unlikely to be beaten today.
 
The current record stands at a reported £835,000,000 ($1,344,170,692; €1,043,407,442) set by the Premier League during the 2014 summer transfer window.
The spending smashed the previous record, also held by the Premier League, of £603m and easily out-spent the other major European leagues, with La Liga coming closest, with a gross spend of £425m. 
 
Serie A was next with a gross spend of £260m, followed by the Bundesliga with £250m and Ligue 1 with £100m. Manchester United spent the most money – approximately £150m, with half of that reported to have gone towards Argentine winger Angel Di Maria