Liverpool completed the restructuring of its forward line by offloading Italian striker Fabio Borini to Sunderland on Monday.

Sunderland says Borini has signed a four-year deal, with British media reporting atransfer fee of 10 million pounds ($15.4 million).

The 24-year-old Borini spent a successful year on loan at Sunderland in the 2013-14 season, scoring 10 goals to help the northeast team stay in the Premier League.

Strikers Mario Balotelli and Rickie Lambert have already left Liverpool in this transferwindow, with Christian Benteke, Roberto Firmino and Danny Ings arriving.

The transfer window shuts on Tuesday in England.

The transfer window in Spain closed Monday without a deal announced for the expected move of Manchester United goalkeeper David de Gea to Real Madrid, with local media reporting the deal fell through because the paperwork wasn't submitted on time.

Madrid and United had been negotiating a deal that included Costa Rica goalkeeper Keylor Navas moving the other way, but the clubs apparently failed to register the paperwork with the Spanish league offices before midnight local time.

If the deal falls through, De Gea could be forced to return to United despite having been dropped from the team by manager Louis van Gaal as the talks dragged on. Van Gaal has said De Gea had his heart set on a move back to his hometown.

It was unclear whether the clubs would appeal to league authorities or FIFA in an attempt to push the deal through.

Juventus signed midfielders Hernanes and Mario Lemina on a busy final day of Europe's transfer window for the four-time defending champion, which is off to its worst ever Serie A start.

Hernanes joined from rival Inter Milan in an 11-million euro ($12.3 million) transfer- plus up to a further 2 million euros in sporting-related bonuses - and signed a three-year contract.

The 30-year-old Hernanes, who has scored 40 goals in Serie A for Lazio and Inter, was the playmaker Juventus was looking for after attempts to sign Julian Draxler and Axel Witsel fell through.

Lemina, who turns 22 on Tuesday, moved from Marseille on a loan deal with the option to buy for 9.5 million euros ($10.7 million) plus up to 1 million in bonuses. Paolo De Ceglie and Mauricio Isla went the other way, also on loan.

Key midfielders Arturo Vidal and Andrea Pirlo left Juventus in the offseason, moving to Bayern Munich and New York City FC. Forward Carlos Tevez also left, along with young talent Kingsley Coman.

Juventus, which also brought in Mario Mandzukic, Paulo Dybala, Sami Khedira and Simone Zaza during the summer, lost its opening two Serie A matches for the first time in its history.

Inter was also active on the final day and completed moves for Roma forward Adem Ljajic (loan) as well as midfielder Felipe Melo (permanent) and defender Alex Telles (loan) from Galatasaray.

Inter coach Roberto Mancini worked with both Melo and Telles during his spell in charge of Galatasaray.

Elsewhere, much-travelled AC Milan forward Alessandro Matri was on the move again, joining Lazio on loan. It was his fourth such move since Milan bought him back from Juventus in 2013.

The 31-year-old since had spells at Fiorentina, Genoa and Juventus - where he scored the winning goal in extra time in a 2-1 victory over Lazio in last season's Italian Cup final.

Fiorentina signed Jakub Blaszczykowski on loan from Borussia Dortmund. The 29-year-old midfielder made nearly 200 Bundesliga appearances for Dortmund since arriving from Wisla Krakow in 2007 and won the league title twice.

Meanwhile, Sunderland winger Emanuele Giaccherini joined Bologna on a season-long loan, while World Cup winning defender Cristian Zaccardo left Milan for Carpi, signing a two-year contract at the newly-promoted club.

Awash in cash, Wolfsburg broke its club transferrecord by signing Germany midfielder Julian Draxler from Schalke on the final day of the European transfer window Monday.

Draxler signed a five-year deal estimated at 35 million euros ($39.25 million), which would make it the second biggest transfer inside the Bundesliga after Mario Goetze's 37 million-euro ($41.5-million) move to Bayern from Dortmund two years ago.

Schalke director Horst Heldt gave no details but said it was the richest transfer in the club's history.

In other deadline-day moves, Bayer Leverkusen signed Mexico striker Javier Hernandez to a three-year contract from Manchester United, which also sent Adnan Januzaj on loan to Borussia Dortmund.

German media estimate that Wolfsburg collected about 100 million euros ($112.15 million) for Kevin de Bruyne and Ivan Perisic, who joined Manchester City and Inter Milan, respectively.

Draxler, who was on Germany's World Cup winning squad in Brazil last year, is expected to fill the gap left by de Bruyne's departure.

Wolfsburg also confirmed the arrival of Brazil defender Dante from Bayern Munich. Dante signed a three-year deal.

At the same time, Wolfsburg released attacking midfielder Aaron Hunt, who signed a three-year contract with Hamburger SV.

Schalke took midfielder Pierre-Emile Hoejbjerg on loan from Bayern Munich until the end of the season

Elsewhere, Dortmund signed Januzaj on loan until the end of the season, while Bayer Leverkusen sent Australia striker Robbie Kruse to Stuttgart, also on loan.

Mainz took Colombian striker Jhon Cordoba on a season-long loan from Granada, with an option for a more permanent deal.

South Korea midfielder Koo Ja-cheol returned to Augsburg on a two-year a deal. Koo played for Augsburg on loan from Wolfsburg three years ago. He returned to Wolfsburg and was then sent to Mainz at the start of 2014.