With the Premier League season reaching its conclusion, let's look at some of the more successful signings that have been made by the 20 clubs throughout the season, with some debutants making a bigger impact than others.
Here are the top five signings of the season
1. Christian Benteke | Aston Villa
Benteke has been a revelation to Paul Lambert and his young team since joining from Genk this season, and without him they would surely be in a lot more trouble than they are now.
The Premier League strugglers have relied on Benteke for over 50% of Villa's goal tally this season and have been heavily reliant on the 22-year-old for the whole season. They will need him more than ever for the last crucial remaining games of the season, which will decide Villa's fate.
The big Belgian cost Villa a fee believed to be around £7m and Lambert has hailed the striker for his performances this season as he has scored 22 goals in 35 appearances for the Villains. Lambert also believes Benteke has more than doubled in price since arriving at Villa Park.
Aston Villa will do well to hold on to Benteke in the summer and staying in the top division is key to doing this, with the powerful striker being on many clubs wanted list.
2. Michu | Swansea City
Michu joined Swansea City for a bargain fee of just £2m in the summer of 2012 from Spanish club Rayo Vallecano.
Since arriving at the Liberty Stadium, Michu has added just what Swansea were looking for with their attractive philosophy in which they play football. The Spaniard kept Danny Graham at bay in the Swansea side which forced Graham to a move to Premier League for first-team football.
The centre-forward has netted 17 goals in 32 appearances while also setting up two goals for his team this season. Michu, who is the fifth top goal scorer in the league this season, has burst on to the scene and caught the eye of clubs like Spanish club Atletico Madrid and Arsenal as he is one of the coolest players in front of goal in the league.
3. Santi Cazorla | Arsenal
The little Spanish creative midfielder has been great for Arsenal in his debut season, and had to be with some big shoes to fill in the form of the beloved Cesc Fabregas, who never really got replaced, and the more recent Alex Song, who also left for Catalan giants Barcelona.
Santi joined the north London club after previous club Malaga were forced to cash in on the midfielder. Cazorla has fitted in to Arsenal's passing philosophy with ease and has managed to turn around 13 goals and seven assists in 35 games for Arsenal.
The Spaniard has been as important as any player for Arsenal this season as injury-prone Jack Wilshere has sat out on the bench a fair amount of games this season.
4. Oscar | Chelsea
The Brazilian has been in sensational form on his debut season for Chelsea this term and has played a key part in a colossal midfield partnership with Juan Mata and Eden Hazard that has been so formidable.
Oscar's transfer to the west London club was undoubtedly overshadowed by the transfer of Hazard in the same transfer window, but the 21-year-old Brazilian has arguably out-preformed Hazard this season despite only gaining three goals and four assists in 31 games.
Oscar, who came to Stamford Bridge in the summer for a fee of around £25m will surely play a major part in Chelsea's future and will be important to his country in next summer's World Cup.
5. Jan Vertonghen | Tottenham
The second Belgian to make the list - and one of many Belgium nationals to play in the Premier League this season.
Vertonghen has added stability and solidity to the Tottenham back four and has been a key part to Spurs' top-four ambitions. The Belgian centre-half has good technical ability, which is rare for a centre-back, he also is a goalscoring one as well, which has been vitally important for the north London club this season.
The big Belgian has scored four and assisted three in 30 games and will surely be important to Tottenham in the coming seasons.
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