England striker Carroll joins West Ham on loan from Liverpool

(CNN) -- England striker Andy Carroll left Liverpool Thursday on a season-long loan deal to English Premier League rivals West Ham United with an option to buy at the end of that period.

Carroll was a club record £35 million ($55.24 million) signing by Liverpool from Newcastle in January 2011, but has not found favor under new manager Brendan Rogers.

Kenny Dalglish signed him as a replacement for Fernando Torres after the Spaniard departed to Chelsea but he has scored only 11 goals in 58 appearances for Liverpool.

From Inter Milan to Manchester City: The reigning English Premier League champions have snapped up right-back Maicon for an undisclosed fee to help boost their bid for domestic and European honors in 2013. The Brazilian international has been at the San Siro for the past six seasons and made 235 appearances for the club.

Spurs to Hamburg: The Dutch international returns to the Bundesliga after a successful two-year spell at the north London club. Van der Vaart played for Hamburg from 2005 to 2008 before joining Spanish champions Real Madrid.

Manchester United to Fulham: With the arrival of Robin van Persie from Arsenal earlier this month, the chances of Dimitar Berbatov playing even more of a bit part at Old Trafford have only increased. Fulham have been the benefactors of Alex Ferguson's growing indifference to the player he signed for $47 million from Tottenham Hotspur in 2008. The 31-year-old Bulgarian rejected suitors in Italy, notably Juventus and Fiorentina, to stay in the English Premier League.

Sao Paulo to Paris Saint-Germain

The $55 million paid by PSG for 19-year-old midfielder Lucas Moura broke the Brazilian transfer record for the third time this year, eclipsing the fee the French club spent on Thiago Silva and Chelsea's deal for Oscar. He will move to Paris in January, becoming the sixth Brazilian at the club.

AC Milan to Paris Saint-Germain

At $50.75 million, Thiago Silva is the world's most expensive defender in terms of upfront transfer fees -- though the largest including add-ons remains Rio Ferdinand's move from Leeds to Manchester United, which eventually rose to $150,000 more than the Brazilian's total). The 27-year-old spent three years in Italy with AC Milan and is an established international.

Athletic Bilbao to Bayern Munich

Spain midfielder Javi Martinez completed a "complicated" move to the Bundesliga giants after activating a $50 million buyout clause in his contract that left him having to foot some of the bill.

Tottenham to Real Madrid

Luka Modric completed his long-awaited switch from English club Tottenham Hotspur to Spanish champions Real Madrid for a reported $50 million. After attempting to force a transfer ahead of the 2011-12 season, the Croatian has finally got his move away from White Hart Lane.

Lille to Chelsea

Eyebrows may have been raised upon seeing the size of the $49.5 million transfer fee Chelsea paid for Eden Hazard, but the 21-year-old Belgium winger is one of Europe's biggest talents, having being selected for the Ligue 1 Team of the Year three times in a row.

Internacional to Chelsea

After a protracted saga of a transfer, Chelsea finally gave in to Internacional president Giovanni Luigi's demands and paid a Brazilian transfer record $39.25 million for 20-year-old midfielder Oscar. Only time will tell if the talented young playmaker is worth the money, but with so many creative options at Roberto di Matteo's disposal he may well have to make an immediate impact or risk spending a season on the bench.

Arsenal to Manchester United

Robin van Persie, the English Premier League's top scorer last season, stunned Arsenal fans by joining rivals United for $37 million after refusing to sign a new contract.

Napoli to Paris Saint-Germain

Argentina international forward Ezequiel Lavezzi arrives at PSG with a $36.25 million price tag and a big reputation following his five years in Italy. He will link up with another former Serie A star in Zlatan Ibrahimovic.

Borussia Dortmund to Manchester United

Those who cynically write off $26.25 million signing Shinji Kagawa as nothing more than a ploy to boost United shirt sales in Asia do so at their own peril -- the 23-year-old is a top-level player with excellent credentials: two Bundesliga titles, one German Cup, an Asian Cup and more than 30 appearances for Japan.

Everton to Manchester City

Young England international Jack Rodwell was Roberto Mancini's first signing since winning Manchester City's first English league title in 43 years. At $24 million he is far from the most expensive player at the Etihad Stadium, but the highly-rated 21-year-old midfielder is seen as a long-term investment.

AC Milan to Paris Saint-Germain

Until last season, Zlatan Ibrahimovic had won the league eight years in a row with five different clubs. The Sweden striker's $24 million move to PSG pushed him further ahead of Nicolas Anelka as the most expensive player of all time, with total transfers of more than $210 million.

Arsenal to Barcelona

For the second year in a row, a key Arsenal player has been lured to Spain by Barcelona. Last August it was Cesc Fabregas, this time it's Cameroon midfielder Alex Song. The 25-year-old moved for $23.7 million on a five-year contract, with a release clause of $100 million.

Malaga to Arsenal

Spain star Santi Cazorla was one of Malaga's marquee signings last season, but is the first of the troubled Spanish club's high-profile players to depart in the midst of financial problems. The winger's $23.5 million fee is similar what he cost when joining from Villarreal.

Borussia Monchengladbach to Borussia Dortmund

Finishing fourth in both goals scored and assists last season, Marco Reus almost single-handedly pushed Borussia Monchengladbach to a fourth-place finish in Germany and Champions League football. Champions Dortmund see the 23-year-old, who cost $21 million, as the ideal replacement for Shinji Kagawa -- and if his brief appearances at Euro 2012 are anything to go by he could become much more.

FC Twente to Borussia Monchengladbach

After much interest from all corners of Europe, FC Twente's top-scoring target man Luuk de Jong decided to join Borussia Monchengladbach in an $18. 5 million deal. The 21-year-old, who scored 25 goals in 32 appearances last season, went to Euro 2012 but did not appear for the Netherlands.

Montpellier to Arsenal

With the eyes of the English Premier League's fans firmly set on the Robin Van Persie transfer saga, many have neglected the man coming in to replace him -- $18.5 million France international Olivier Giroud. For all the money PSG spent last season, it was Giroud and his 21 goals which spurred underdogs Montpellier to a first Ligue 1 title.

Valencia to Barcelona

New Barca boss Tito Villanova acted quickly to fill the gap left since Eric Abidal's liver transplant, bringing in Spain's Euro 2012 surprise standout player Jordi Alba for a bargain $17 million to fill the left-back slot before the tournament had even finished.

AS Roma to Liverpool

New Liverpool boss Brendan Rodgers paid $17 million for 21-year-old striker Fabio Borini, whose nine goals in 24 appearances at Roma earned him selection for Italy's Euro 2012 squad. He returns to Britain following an earlier loan spell with Rodgers' former club Swansea.

FC Cologne to Arsenal

Lukas Podolski has left his childhood club Cologne for the second time, having struggled to make an impression at Bayern Munich following his 2006 transfer. The Germany star cost Arsenal $15.75 million after scoring 18 Bundesliga goals last season -- which was not enough for "the Billy Goats" to avoid relegation.

Vfl Wolfsburg to Bayern Munich

A surprise star of Euro 2012, Mario Mandzukic scored three times in three games for Croatia to be the tournament's equal top scorer. Bayern paid Bundesliga rivals Wolfsburg $15.75 million for the 26-year-old striker's services.

Ajax to Tottenham Hotspur

Belgium international Jan Vertonghen is already being touted by Tottenham fans as the long-term replacement for injury-plagued former captain Ledley King in the center of defense. His protracted $11.5 million transfer could prove key to the fortunes of new Spurs boss Andre-Villas Boas.

Marseille to Chelsea

Chelsea took its spending in the current transfer window to over $100m with the signing of Spanish full back Cesar Azpilicueta from French team Marseille.

Werder Bremen to Chelsea

Germany midfielder Marko Marin agreed his $9.5 million move to Chelsea before last season had even finished, and the 23-year-old is expected to make a big impact for the European champions with the skills that have seen him dubbed "the German Messi."

AC Milan to Internazionale

Antonio Cassano has left AC Milan to join city rivals Inter, while fellow Italy striker Giampaolo Pazzini went in the other direction. Milan had to pay a reported $8.7 million extra for Pazzini, who at 28 is two years younger than his former Sampdoria teammate. Cassano, meanwhile, recovered from heart surgery to help Italy reach the final of Euro 2012.

Internazionale to Internacional

Diego Forlan struggled to impress in his one season in Italy after seven prolific years in Spain's top flight, but the 33-year-old Uruguay striker could prove to be a free-transfer bargain in Brazil for Internacional. He was named best player at the 2010 World Cup, where he was joint top scorer, and has led the goal charts twice in Europe.

Fiorentina to AC Milan

Midfielder Riccardo Montolivo agreed to join Milan on a free transfer before helping Italy reach the final of Euro 2012, having spent seven years at Fiorentina.

Real Madrid to Liverpool

Turkey midfielder Nuri Sahin failed to impress in in his one season at Real Madrid after being snapped up from German champions Borussia Dortmund, and has been given the chance to kickstart his career in the English Premier League.

Maicon -- undisclosed fee

Rafael van der Vaart -- $16 million

Dimitar Berbatov -- undisclosed fee

Lucas Moura - $55M

Thiago Silva - $50.75M

Javi Martinez - $50M

Luka Modric - $50M

Eden Hazard - $49.5M

Oscar - $39.25M

Robin van Persie - $37.5M

Ezequiel Lavezzi - $36.25M

Shinji Kagawa - $26.25M

Jack Rodwell - $24M

Zlatan Ibrahimovic - $24M

Alex Song - $23.7M

Santi Cazorla - $23.5M

Marco Reus - $21M

Luuk de Jong - $18.5M

Olivier Giroud - $18.5M

Jordi Alba - $17M

Fabio Borini - $17M

Lukas Podolski - $15.75M

Mario Mandzukic - $15.75m

Jan Vertonghen - $11.5M

Cesar Azpilicueta - $11m

Marko Marin - $9.5M

Cassano/Pazzini - Swap

Diego Forlan - Free transfer

Riccardo Montolivo - Free transfer

Nurhi Sahin - Season loan

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Carroll did show improved form at the end of last season and forced his way into the England squad at Euro 2012.

West Ham and his former club Newcastle both made approaches for the 23-year-old, but it is the newly promoted London club and their manager Sam Allardyce who has won the day.

"It's great to be here at West Ham and all signed up. I just can't wait to get started now," Carroll was quoted on the club's official website.

"I want to be playing games and obviously hoping to score some goals. I know the manager well and some of the lads, so it is nice for me to come to a place where I know people.

Carroll was on the playing staff at his home town club of Newcastle when Allardyce was in charge and will be hoping to revive his career with him.

"I'm hoping to add a lot of goals and create a few chances. I know Sam from Newcastle and he was a massive reason for me coming."

Allardyce was delighted by his new acquisition, who has been named in the latest England squad for World Cup qualifying matches next week.

"I think for all parties this is a great signing. Andy is an all-round footballer, but because he is tall and one of his strengths is his aerial power, everybody dismisses the ability he possesses on the floor," Allardyce said.

Another striker on the move ahead of the final day of dealing in the transfer window was Manchester United's Bulgarian international Dimitar Berbatov, who was having a medical at Fulham with a view to a permanent transfer.

Real Madrid also confirmed the transfer of midfielder Esteban Granero to Queens Park Rangers, another EPL side who have been busy in the market, on a four-year deal.