Now the Premier League season is done and dusted, teams have less time than ever before to prepare for the next one.
That is rest for their current squad, pre-season training and the all-important transfers.
Clubs' widespread transfer departments mean planning has already been well under way, identifying areas to bolster and areas they could free up.
We pick out the players who could be on the move before September 12, and also take a closer look at three whose deals have already been confirmed.
*Article first published on July 29*
Wilfried Zaha (Crystal Palace)
Wilfried Zaha is 'so set on leaving' Crystal Palace, according to boss Roy Hodgson.
The Ivory Coast international, 27, came close to joining Arsenal and Everton last summer, but a deal failed to materialise and he had to stick around for another season at Selhurst Park.
Zaha impressed in recent home defeats by Manchester United and Chelsea, but it did not stop Palace from losing seven of their last eight games. He made 39 appearances in total, scoring four goals and assisting five.
He remains Palace's biggest threat, but the Londoners are short of creativity and his stats should be better for a player of his calibre.
“Wilf has made it clear ever since I came to the club really that he would relish a move and would like to move on and find some pastures new, but he is a very valuable player," said Hodgson after their draw with Tottenham on the final day of the season.
“The club realises his value and appreciates his value, so really it will depend like it always does on what offers the club are going to receive for him, and how they will equate that to the need to keep him or the need to satisfy his wishes and allow him to go.”
With Arsenal instead shelling out on Nicolas Pepe last year and having to prioritise elsewhere in the market this summer, an Emirates switch now appears unlikely.
Everton, Tottenham, Chelsea and Borussia Dortmund have been linked, as have former club Manchester United.
Jack Grealish (Aston Villa)
The Aston Villa captain has been heavily linked to Manchester United (6/5 favourites) but Villa will demand big money now they have remained in the Premier League.
He helped them survive on the final day, by a point, after scoring in the 1-1 draw at West Ham.
Grealish, 24, scored 10 times and his future will be high on the agenda in Villa’s planning for next season.
Reports suggest the club are holding out for £80m after securing survival and Sky Sports say interest has cooled with Jadon Sancho the priority target.
Other options, according to Sky Bet's transfer market, include Arsenal at 4/1, Man City at 5/1 and Tottenham at 12/1.
David De Gea (Manchester United)
David de Gea was once among, if not the, world's best goalkeepers. But a series of clangers have distanced him from that title and potentially the number one spot at Manchester United.
The Spaniard, now on 404 club appearances and still only 29, made two errors against Chelsea in the FA Cup semi-final defeat earlier this month (see below), as well as against Tottenham in the Premier League in June, which led to THAT Roy Keane rant.
With Dean Henderson having an impressive season out on loan at Sheffield United, pressure is increasing on De Gea, with speculation he is past his best.
Only Newcastle’s Martin Dubravka has made more errors leading to goals than the United number one's four in the Premier League this season – all players, not just goalkeepers. The Spaniard finished third in the charts in 2018/19 too, costing his team four goals.
In the two previous seasons, De Gea made not a single error that led to a goal. The two campaigns before that saw one each term.
Being the club's joint biggest earner on a reported £350,000 a week, along with Alexis Sanchez, he will not be easy to move on if that is Ole Gunnar Solskjaer's preference.
Kepa Arrizabalaga has been disappointing since joining Chelsea two years ago. The reported £71.6m fee paid to Athletic Bilbao heightens those expectations and he has failed to come close.
Frank Lampard's side, despite finishing fourth, conceded 54 goals this season - more than any other top-half team - and there are reports he is ready to weald the axe.
Andre Onana of Ajax has regularly been linked with the Londoners, with the 24-year-old Cameroon goalkeeper's price reportedly set at around £25m, while it has also been reported that Blues owner Roman Abramovich wants Atletico Madrid's Jan Oblak, who will not come cheap.
Lampard insisted his decision to start veteran Willy Caballero ahead of Kepa on the final day win over Wolves revolved only around the clash, but the Blues could yet change their goalkeeping situation in the close season.
Refusing to let Kepa be the focus of Chelsea’s defensive shortcomings this term, Lampard insisted he will put aside the club’s goalkeeper situation until after the FA Cup final against Arsenal and the Champions League trip to Bayern Munich.
“The idea that we haven’t kept enough clean sheets is definitely not just a reflection of our goalkeeper,” said Lampard.
“That’s something that we have to work on as a team, look at how we train, maybe how we recruit generally going forward. But I don’t want to pinpoint it on Kepa today.
“That was a decision today probably on recent form, recent situations for him, he’s had a tough time.
“And I felt Willy coming in off the back of a good performance against Manchester United last week would be what we needed today.
“So I don’t want to jump forward beyond the Arsenal game next week. It would be wrong.
“The squad is really strong as we are and I want it to stay that way for one more week domestically and then going to Bayern Munich. Looking forward to next season will happen after that.”
Nathan Ake (AFC Bournemouth)
Nathan Ake has regularly been linked with a big move and now Bournemout have been relegated, that is looking more likely.
The Dutch defender left Chelsea to join the Cherries in July 2017 and he has been linked with a return to Stamford Bridge, but Manchester City are heavily fancied to secure his signature.
Since moving three years ago, Ake has featured in 121 games for Bournemouth with 11 goals and six assists on his tally.
He was only deemed fit enough to make the bench for their crucial final day clash - was that Eddie Howe preserving their top asset ahead of a possible sale? We will see.
Ben Chilwell (Leicester City)
Leicester are under no pressure to sell the England international but Chelsea are widely reported to be preparing an offer.
The Foxes will play hardball, with the club having got £80m for Harry Maguire and £60m for Riyad Mahrez in the past two years.
The emergence of Luke Thomas and Christian Fuchs’ new deal gives the Foxes back up but they will not let Chilwell go lightly.
Reports on Monday though, confirm that he remains a top target for Frank Lampard at Stamford Bridge. The 23-year-old, too, reportedly sees his long-term future at Chelsea, according to The Mirror.
He will not come cheap though, with a fee expected to exceed £60m.
"He's not a player we want to lose. I'm quite relaxed on it. I'm not worried at all," Rodgers said after their final day defeat by Man United.
"We've got a fantastic squad that we want to keep together so I don't worry."
Quite similar to what he said during the Harry Maguire transfer saga and look how that ended.
Declan Rice (West Ham)
Declan Rice could well leave West Ham in this transfer window and Chelsea have been backed into an odds-on price to bring him to Stamford Bridge.
If Rice were to make the switch to Chelsea, he would be following in the footsteps of Lampard who did the same when he left West Ham for the Blues in 2001, but more than that it would be a return home after he was released by the club as a youngster.
Rice is naturally a defensive midfielder but he has dropped into a centre-back role when required. If he were to come to Chelsea, it is likely that they would use him as a player to sit at the base of midfield and offer further protection to the back line.
The 21-year-old has featured in 99 Premier League matches for the Hammers - scoring three goals.
The Guardian recently reported that the Hammers are adamant they have no intention of selling Rice and have ruled out a swap deal involving Ross Barkley and Michy Batshuayi. West Ham themselves are said to be monitoring QPR's Eberechi Eze, Wigan's Antonee Robinson and Cedric Kipre, according to the same piece.
With Kai Havertz expected to join Chelsea for £70m, they will have already splashed out around £150m with Hakim Ziyech and Timo Werner also completing moves, so they may have to sell in order to fund a costly bid for versatile Rice.
Pierre-Emerick Aubameyang (Arsenal)
Pierre-Emerick Aubameyang must be a priority for Arsenal this summer.
The Gabonese forward has just a year remaining on his deal at the Emirates and, at 31, it is likely to be his last big contract. Real Madrid have been linked with a move, but boss Mikel Arteta remains relaxed and seems confident of extending his deal.
Surely the cost of replacing Aubameyang outweighs the cost of an extension, such is his quality. He has scored 68 and set up 15 in 108 appearances since joining from Borussia Dortmund in 2018.
He shared the Premier League Golden Boot in 2018/19, while playing in an under-performing Arsenal side, and again went close this season as he finished just a goal behind eventual winner Jamie Vardy.
While Arsenal remain relaxed, the longer the saga goes on the more power Aubameyang will gain in negotiations.
Pierre-Emile Hojbjerg (Southampton)
Tottenham are close to gazumping Everton in the race to sign Southampton midfielder Pierre Emile Hojbjerg, according to Sky Sports News.
The Denmark international, 24, was Saints captain before the shutdown but lost the armband after telling the club he he did not want to extend his current contract beyond 2021.
He has scored five goals in 133 games since joining Southampton from Bayern Munich for £12.8m in 2016.
Everton were in pole position earlier this month having bid around £19m.
Max Aarons (Norwich City)
Tottenham hold a long-standing interest in the Norwich right-back and were close to making a move earlier in the season.
They elected to wait until the summer, although that was before Jose Mourinho’s arrival, but the bidding is likely to start at £20m.
Aarons endured a baptism of fire with the Canaries relegated, but he remains one of their top talents.
Callum Wilson (AFC Bournemouth)
The vultures will be circling for the England striker after Bournemouth’s relegation.
Tottenham have already been linked, even after he failed to reach his previous heights and scored just nine goals over the 2019/20 campaign.
At 28, Wilson should be in his prime and it would be a surprise to see him remain at the Cherries this summer.
Abdoulaye Doucoure (Watford)
The midfielder has already spoken about leaving Watford and will surely be subject to bids after the Hornets dropped into the Sky Bet Championship.
“A club that plays in the Champions League is the goal, but I don’t have a particular one in mind,” he told Canal+ in February.
Everton and PSG have been credited with interest and Watford will find it hard to keep the 27-year-old.
Mesut Ozil (Arsenal)
Another season passes and it is another one with Mesut Ozil off the boil.
The German playmaker has always been given the benefit of the doubt - 'if he can come good and back to his best under this manager' - but this campaign may have been his last at the Emirates.
The 31-year-old has been frozen out by Mikel Arteta, who has refrained from speaking publicly about his player's situation.
Injuries have sometimes been an issue, but the Arsenal boss has shown with Ozil and Matteo Guendouzi that he will not be taken for a mug.
Ozil is Arsenal's highest earner on a reported £350k-a-week contract which has a year left to run. For that kind of money, 23 appearances and one goal in all competitions does not cut the mustard.
He has reportedly rejected an offer from Fenerbahce while more Turkish and MLS clubs have been linked. The sooner both parties draw a line under this working relationship, the better. It's gone stale.
And three confirmed deals...
Jan Vertonghen (Tottenham)
The defender has confirmed he is leaving Tottenham on a free transfer after eight years at the club.
Vertonghen tweeted: “So my time at the club comes to an end. A sad day for many reasons.
“I will miss the friends I’ve made here, the staff that make the club run, playing at the amazing new stadium & of course you fans.
“Thank you for all the support over the years. You’ve been amazing. We had many unbelievable memories but for now, it’s goodbye.”
At 33, time is not on his side but the centre-back will still be able to offer experience and quality in a market where money could be tight thanks to the coronavirus pandemic.
Vertonghen could prove to be a steal for a club needing a reliable leader.
He was open to the possibility of staying in north London, but his future now lies elsewhere and he has previously spoken about the desire to move to a new country and play in the Champions League, with Spain and Italy possible destinations.
Adam Lallana: Liverpool - Brighton, free
Brighton have completed the signing of former Liverpool midfielder Adam Lallana.
The 32-year-old has agreed a three-year deal with Albion and returns to the south coast having left Southampton in 2014.
Dejan Lovren: Liverpool - Zenit, £10.9m
Liverpool defender Dejan Lovren has completed a £10.9million move to Zenit St Petersburg.
The 31-year-old has ended six seasons at Anfield having made just 15 appearances this term, falling to fourth-choice centre-back in the pecking order behind Virgil Van Dijk, Joe Gomez and Joel Matip.
Lovren, who was troubled with niggling injuries over the last two years, was set to enter the final year of his contract but Liverpool chose not to take up an option they had for a 12-month extension to allow the Croatian to join the Russian side.
Follow all the latest from the summer transfer window with moves involving the Premier League, Sky Bet EFL and Europe.
A full list of all the complete signings in the summer 2020 football transfer window with details of the confirmed deals from the Premier League, Sky Bet EFL and Europe.
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