English Premier League clubs swelled the bank accounts of continental rivals in a summer of record-breaking spending that ended Wednesday with the biggest shock of the transferwindow: David Luiz's return to Chelsea.

The flamboyant Brazilian is back at Stamford Bridge after two years at Paris Saint-Germain to reinforce Chelsea's defense under new manager Antonio Conte. While Chelsea sold the 29-year-old for around 50 million pounds ($84 million in 2014), the London club has re-signed him on a three-year contract for about 20 million pounds ($26 million) less.

That's also far lower than what was spent on the summer transfer window's biggest reunion. Italian champion Juventus banked a world-record 105 million euros ($116 million) from Manchester United for midfielder Paul Pogba's return to Old Trafford.

United was one of 13 Premier League sides to break their club records for spending on a single player since the end of last season, signing Paul Pogba (above). The 20 top-flight clubs collectively spent nearly 1.2 billion pounds ($1.5 billion) on talent in the summer, breaking the billion-pound barrier for the first time in a transfer window as they benefit from new television deals.

Over the next three years, the Premier League will make 8.3 billion pounds ($10.9 billion) from broadcasters eager to televise the most unpredictable of Europe's top leagues - a bonanza that has swelled thanks to a 70 percent upsurge in the value of domestic rights.

There is a flipside.

"All the European clubs rub their hands because when they are short of money they just ring up one of the Premier League clubs (to sell a player) to keep them going for the next two years with 10 million, 20 million - whatever it might be," Stoke chairman Peter Coates told the BBC on Wednesday. "So it's pretty good business for them."

Stoke had a relatively modest summer of spending after breaking its transfer record in the January window when it paid Portuguese club Porto 18.3 million pounds (then $26 million) for defensive midfielder Giannelli Imbula.

Negotiating with clubs on the continent for a bargain is proving tougher for Premier League chairmen like Steve Parish at Crystal Palace. The London club's record-breaking summer deal was a domestic transaction, paying Liverpool 27 million pounds ($35 million) for striker Christian Benteke.

"It's been the most difficult transfer window anybody can remember - there's kind of a wall of money," Parish said. "The other leagues basically have decided there's one price within their league and a completely different price if a Premier League club calls. The prices have gone crazy ... you find people focusing more on the domestic market."

Tottenham turned to Newcastle for its biggest summer deal, paying a reported 30 million pounds ($39 million) as the window was closing for France midfielder Moussa Sissoko.

French clubs profited from the English wealth on Wednesday, receiving about 55 million pounds ($72 million) from the Premier League. Luiz's return was preceded by Georges-Kevin Nkoudou's move from Marseille to Tottenham and Sunderland signing Didier Ndong from Lorient.

Here are some of the other key deadline-day moves across Europe:

ENGLAND

While splurging on new talent, Premier League clubs having sought to shed non-vital players. Offloading top earners is tough with the wealthier parent clubs, like Manchester City, often having to subsidize the wages for a player on loan.

New City coach Pep Guardiola dispatched Joe Hart, Wilfried Bony, Samir Nasri and Eliaquim Mangala on Wednesday for the rest of the season.

Hart (above), the England goalkeeper, is now at Italian club Torino after dropping to third choice at City. Bony joined Stoke after seeing his career stall since joining from Swansea last year. Nasri headed to Sevilla for the season after Guardiola said the French midfielder returned for preseason training "overweight." France center back Mangala also departed for Spain with Valencia.

In addition, Arsenal midfielder Jack Wilshere had to accept moving to a less prestigious club on Wednesday, heading to Bournemouth on the English Riviera for the season in a bid to revive his injury-plagued career.

Liverpool also got troubled striker Mario Balotelli off its books, with the Italian joining Nice in France.

Spanish left back Marcos Alonso also joined Chelsea for a reported 23 million pounds ($30.2 million) to provide competition at left back for Cesar Azpilicueta.

Alonso, who previously had spells in England at Bolton and Sunderland, would also be a good option as a left wing back if Conte decides to use a three-man defense.

Leicester broke their transfer record to sign striker Islam Slimani from Sporting Lisbon. The Portuguese club said the move to Leicester was worth 30 million euros ($33.5 million), potentially rising by another 5 million euros ($5.5 million).

The 28-year-old Slimani is linking up with fellow Algerian Riyad Mahrez, who helped Leicester produce one of the biggest sporting surprises last season by winning the Premier League.

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ITALY

Three of the biggest transfers in Serie A on deadline day saw players arrive from England. As well as Hart's loan move, Juan Cuadrado returned to Juventus from Chelsea and Luis Alberto joined Lazio from Liverpool on permanent deals.

In the biggest internal deal of the summer in Italy, Juventus reinvested the Pogba windfall by bringing in last season's top goalscorer, Gonzalo Higuain, for 90 million euros ($100 million) from Napoli.

The club that strengthened its squad the most in Serie A is already the best club in the league.

Juventus made a number of top signings in the offseason, including bringing in last season's top goalscorer Gonzalo Higuain for 90 million euros ($99 million) in the most expensive transfer in Italian football history.

There were also key departures, such as Paul Pogba returning to Manchester United for a word-record fee of $116 million, but those were overshadowed by the transfers of Higuain, as well as the arrivals of playmaker Miralem Pjanic, winger Dani Alves and defender Medhi Benatia.

Juventus further reinforced its stellar squad on the final day of the transfer window by re-signing Cuadrado on a three-year loan deal.

It will pay Chelsea 5 million euros ($5.6 million) a season for the winger, who also spent last season on loan in Turin.

Juventus will have the option to make the deal permanent for 25 million euros ($28 million) — and will be obliged to if "determined sporting targets" are met.

A sixth successive Serie A title seems a foregone conclusion, even if Juventus was ultimately thwarted in its attempts to sign Alex Witsel from Zenit St. Petersburg.

Juventus had already agreed to a fee for Witsel, who had passed a medical examination, but Zenit would not let the Belgium midfielder go until it had signed a suitable replacement — which it failed to do.

GERMANY

While Bayern Munich and Borussia Dortmund made no last-minute moves, Bundesliga rival Schalke and other clubs signed new players as the transfer deadline expired Wednesday with record spending and Hamburger SV landing Brazilian Olympic gold medalist Douglas Santos.

The five-year deal was signed shortly before the German transfer deadline ran out at 1600 GMT. Hamburg gave no details about the deal, but local media reports put the transfer at between 7 million and 10 million euros ($7.79 million and $11.13 million).

Douglas Santos (above), a left back, last played for Atletico Mineiro and was in Brazil's lineup that beat Germany in the Olympic final.

Schalke's latest addition to an already heavily revamped squad was attacking midfielder Yevhen Konoplyanka from Sevilla. The Ukraine international, who helped Sevilla win the Europa League last season, arrives on a one-season loan with an option to make the move more permanent.

"We are very pleased to have gotten a quick player who is a scoring threat and can play on both wings," Schalke coach Markus Weinzierl said.

According to the German news agency dpa's calculation, based on estimates, Bundesliga clubs spent 500 million euros ($556 million) for the first time by spending 506.5 million euros ($565.66 million) on new players. At the same time, the 18 clubs earned about 450 million euros ($502.56 million) from transfers, another all-time high.

Schalke reshuffled its squad following the departure of winger Leroy Sane for Manchester City, bringing in 16 new players while letting 10 go. Weinzierl is also a new arrival.

Konoplyanka reunites with former Sevilla defender Coke. But the right back had a serious right-knee injury on arrival and is not available.

Dortmund already had signed eight new players and made no new moves as the deadline approached.

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SPAIN

With Barcelona, Real Madrid and Atletico Madrid all remaining quiet on the final day of the transfer window, Sevilla picked up Manchester City cast-off Samir Nasri while Valencia bolstered its defense on Wednesday.

Nasri, who new Manchester City coach Pep Guardiola called "overweight" during the preseason, moved to Sevilla on a loan deal.

He should give the Europa League winners some much needed playmaking under new manager Jorge Sampaoli following the exit of Ever Banega.

Sevilla meanwhile loaned Ukraine winger Yevhen Konoplyanka to Schalke.

On a relatively quiet closing day of the summer market in Spain, the biggest mover by far was Espanyol.