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Even though the transfer window is officially shut for Premier League clubs, they still have the opportunity to sign free agents (players who aren't contracted by any club) throughout the entire season.
In the past, clubs have taken advantage of free agents in order to bolster their squad on their quest for glory, most recent being Swedish international Zlatan Ibrahimovic, who led them to their first-ever Europa League trophy without costing a penny.
Carlos Tevez, Ruud Gullit, Jurgen Klinsmann and Jay-Jay Okocha are just some of the most prominent free agents who made a name for themselves in England's first division.
Manchester City is currently experiencing a goalkeeping crisis right now as Claudio Bravo's injury means Ederson is the Citizen's only viable goalie, while key United players like Nemanja Matic and Sergio Romero are currently recovering from harsh injuries.
Since these clubs aren't allowed to sign any more players in 2018, let's take a look at the top three free agents who would set the Premier League alight.
#3 Serdar Tasci
German center back Serdar Tasci rose to Bundesliga prominence via the VfB Stuttgart youth academy. After the first-team management of Stuttgart was impressed with his performances for the youth team, they promoted him to the 'B' team.
In 2006, Tasci made his first full Stuttgart senior appearance and had gone on to become one of their most eminent players at the turn of the decade.
The Esslingen native managed to represent his country in the 2010 FIFA World Cup and later became a vital part to Spartak's defense.
Tasci made over 70 appearances for the Krasno-Belye with an average of 1.77 points per game, according to Transfermarkt, before leaving the club this summer. His addition to the Premier League would mean serious problems for the opposition attackers.
Clubs like Leicester City and Wolverhampton Wanders need more experienced defenders like Tasci in their team, and the German would certainly be a game-changer for that club.
#2 Hatem Ben Arfa
Every Premier League fan would definitely remember Hatem Ben Arfa from his stint at Newcastle United. The Tunisian-French central attacking midfielder scored some sensational goals for The Magpies and gave hope to a falling club.
The Clamart born footballer started his professional career at Lyon and called the Groupama Stadium home for four years before moving on to rivals Marseille.
His shot to stardom came after his loan move to Newcastle United, which was made permanent after the club realized his potential.
The sensational attacker has already lit the Premier League alight with his tenacity on the ball and his crowd-pulling through balls, but didn't quite manage to keep a hold of that form for long.
After plying his trade in France, reviving the lost spirit of OGC Nice, but then becoming a backup player at Paris Saint-Germain, Ben Arfa would be looking to play football in a familiar ground and Newcastle United would be the most ideal location for him to do so.
#1 Claudio Marchisio
Claudio Marchisio is one of the only one-club men left in world football today. The former Juventus midfielder has only ever represented the Old Lady during his footballing life (although he did have a couple of loan spells at the beginning of his career), but now looks set to don new colors, as Newcastle United are one of the clubs lurking for his signature.
Claudio's vision in midfield and his control of both the attack and defense in the final thirds of the game was one of the main reasons why Juventus rose to greatness in the last decade or so.
His presence in Turin would surely be missed by Il Bianconeri, even though the club brought in ample reinforcements.
Marchisio would certainly raise excitement amongst fans if he joins a Premier League club, and is almost guaranteed to have an immediate impact for the club.
Kevin De Bruyne's long-term injury means there's a gap in their midfield, which needs to be filled. He would also be a perfect replacement for the aging Fernandinho as a holding midfielder, a position Guardiola's been trying to strengthen ever since his tenure, so Manchester City would be a perfect destination for a player of his quality.
