It's the question every football fan asks twice a year... who will my club sign this transfer window?
The summer transfer window has now closed for 2019.
Read on to find out about this year's summer signings and discover where the excitement of transfer deadline day started.
- Harry Maguire [Leicester - Manchester United] - £80 million - a world record for a defender
- Romelu Lukaku [Manchester United - Inter Milan] - £73 million
- Nicolas Pepe [Lille - Arsenal] £72m - the Gunners' most expensive signing in history
- Rodri [Atletico Madrid - Man City] - £62.8 million
- Tanguy Ndombele [Lyon - Tottenham] - £53.8 million - another transfer record for the club
- Moise Kean [Juventus - Everton] - £25.1 million
- Ryan Sessegnon - [Fulham - Tottenham] - £25 million
- Arnaut Danjuma [Club Bruges - Bournemouth] - £13.7 million
- Tom Heaton [Burnley - Aston Villa] - £8 million
- David Luiz [Chelsea - Arsenal] - £8 million
- Albian Ajeti [FC Basel - West Ham] - £8 million
- Emil Krafth [Amiens - Newcastle United] - £5 million
- Laurent Koscielny [Arsenal - Bordeaux] - £4.6 million
- Gary Cahill [Chelsea - Crystal Palace] - Free
- Romaric Yapi [Paris Saint-Germain - Brighton] - unreported
- Wayne Rooney [DC United - Derby County] - Player-coach deal to go through in January
- Ismaila Sarr [Stade Rennais - Watford] - club record fee, unreported
- Aaron Mooy [Huddersfield - Brighton] - unreported
- Andy Carroll [West Ham - Newcastle] - unreported
- Scott Carson [Derby - Manchester City] - unreported
- Giovani Lo Celso [Real Betis - Tottenham] - unreported
- Danny Drinkwater [Chelsea - Burnley] - unreported
We want to know what you think of the signings - head to the comments below to let us know!
The first news of the day was that Tottenham had reached an agreement with Fulham to sign England Under-21 left-back Ryan Sessegnon for £25 million. Meanwhile, Spurs midfielder Josh Onomah is moving the other way.
Manchester United confirmed they would be selling Romelu Lukaku to Inter Milan for £74 million, while Chelsea's David Luiz is heading to Arsenal.
It was announced that Newcastle had signed Swedish defender Emil Krafth from French side Amiens, shortly before confirmation that Brighton had done a deal to secure a new young defender in 19-year-old Romaric Yapi from Paris Saint-Germain.
It had been reported that Tottenham would sign Juventus and Argentina forward Paulo Dybala, but Juventus ultimately decided not to sell the 25-year-old.
But they did make another signing in 23-year-old midfielder Giovani Lo Celso from Spanish club Real Betis on a season-long loan, with an option to sign permanently.
Elsewhere in the Premier League, West Ham signed 22-year-old Switzerland international striker Albian Ajeti from FC Basel and Manchester City signed former England goalkeeper Scott Carson on a season-long loan from Derby.
Also, Burnley signed Chelsea midfielder Danny Drinkwater on loan until January.
In the Championship, Leeds United completed the signing of 19-year-old goalkeeper Illan Meslier from Ligue 2 side Lorient, while Cardiff City signed striker Isaac Vassell from fellow Championship side Birmingham City.
Shrewsbury Town signed Millwall striker Steve Morison until the end of the season while goalkeeper Luke Steele joined Millwall on loan until January. Stoke snapped up Tottenham defender Cameron Carter-Vickers on loan for the rest of the season and Grady Diangana joined West Bromwich Albion on a season-long loan.
West Brom signed Southampton striker Charlie Austin for £4 million. He's moving to the Championship club after three and a half seasons at St Mary's where he made 81 appearances and scored 20 goals.
Meanwhile, Wigan signed 21-year-old defender Tom Pearce from Leeds United on a three-year deal. The former Everton player has featured 10 times for Leeds and spent the second half of last season on loan at Scunthorpe United.
Arsenal confirmed that Eddie Nketiah has signed for Leeds United on loan. The 20-year-old tweeted: "New season. New Challenge! Can't wait to get started with @LUFC. God is great!"
Football teams are only allowed to register new players with the club during two periods of time every season. It is during these 'transfer windows' that clubs sign lots of big deals to move players between sides.
The final day of a transfer window is known as deadline day. It's often full of last-minute signings.
Currently in the UK, these 'windows' run during the summer between seasons and for the month of January. The deadline for transfers for Premier League teams this summer was 5pm on Wednesday 8 August.
In most countries, the windows run for roughly the same period of time, but in 2018, Premier League clubs agreed to shorten the window in the UK.
The deadline for Scottish clubs, League One and League Two is on Monday 2 September, while the Championship window closed at the same time as the Premier League window.
It's important to remember that Premier League clubs can still sell players to other leagues after today's deadline. The danger with that is that those clubs cannot bring in anybody to replace players past that point. So if Tottenham midfielder Christian Eriksen transfers to a club in Spain after today's deadline, Mauricio Pochettino will have to wait until January to bring in a replacement.
The transfer window closes later for other European leagues - in Italy, on Friday 23 August, while clubs in Spain's La Liga, the French Ligue Un and the German Bundesliga must complete their business by 2 September.
The Premier League teams decided to close the window early, before the first round of fixtures, so that players weren't distracted by potential moves once the season had started.
Despite this, clubs are still allowed to sell players up to the end of the summer transfer window in Europe - they just can't bring in replacements.
Plans for a transfer window were first proposed and discussed by national associations in the 1990s, but the first official and compulsory system that Fifa instructed all football clubs to follow didn't come into place until 2002.
The reason was mainly to provide football clubs with stability - it also was meant to stop football agents from making deals all year round, which could be seen to interfere with players' focus and disrupt team unity.
At this time in football history, players' salaries were a lot of money... but nothing compared to what they are now.
Believe it or not, 40 years ago, signing a player for £1 million was a big deal!
The first £1 million player transfer in Britain was for Trevor Francis in 1979 - long before transfer windows began. That fee was paid by Nottingham Forest to Birmingham City.
Ever since then, the value of players has increased significantly over time.
As clubs become wealthier and want to compete for the biggest trophies in club football, the demand for the best players in the world goes up and up... and up!
Since Trevor Francis's transfer, clubs have not looked back - and there have been many notable players who have signed world record transfer deals.
Alan Shearer's £15 million transfer from Blackburn Rovers to Newcastle United in 1996 kicked off a number of other record-breaking transfer fees.
Brazil's Ronaldo - not to be confused with Portugal's Ronaldo - and Christian Vieri all featured in big money deals, but it was Hernan Crespo's transfer from Parma to Lazio in 2000 that made him the first player to cost more than £30 million.
Not long after, Luis Figo controversially moved from Barcelona to Spanish rivals Real Madrid for £37 million. Then, a year later, Real Madrid snapped up another world record signing - French midfielder Zinedine Zidane.
Since then the transfer market has spiralled.
Cristiano Ronaldo (£88 million to Juventus), Paul Pogba (£89 million to Man Utd), Ousmane Dembele and Philippe Coutinho (both around £100 million to Barcelona) have all had massive transfer prices.
Neymar signed for PSG in 2017 from Barcelona for an eye-watering £200 million, smashing Kylian Mbappe's £158 million signing to the same club.