Pascal Gross | Brighton
The German midfielder fled the sinking ship at Ingolstadt to join high-flying Brighton and has been one of the star men for Chris Hughton's side.
The 26-year-old's seven goals and eight assists proved pivotal in keeping his side in the English top flight and another key role awaits him next season.
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Dani Alves | Paris Saint-Germain
The 35-year-old upset Manchester City boss Pep Guardiola when he snubbed a move to England to join Paris Saint-Germain and has shown why there was such a high demand for him despite his age.
An important figure for the French side on and off the field, he is a magnet for success and has no doubt had a key role in Neymar's quick adaptation to the capital city.
Mariano Diaz | Lyon
Lyon snapped up a superstar when they lured Mariano Diaz from Real Madrid. The Spaniard’s 18 goals have been vital in keeping them on track for a Champions League qualifying place as well as thrusting him into the limelight after being hidden away at Madrid for so long.
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Kylian Mbappe | Paris Saint-Germain
The French teenager turned Ligue 1 on its head when he swapped Monaco for Paris Saint-Germain.
The 13-goal forward has been one of his side's top performers this term to win a second straight Ligue 1 title and great things are expected in the coming years.
Davinson Sanchez | Tottenham
The Colombian centre-back has made a smooth transition to the Premier League since joining Tottenham from Ajax.
Sanchez made 43 appearances in his first season in England and looks at home alongside Jan Vertonghen and Toby Alderweireld in the back-line.
Niklas Sule | Bayern Munich
“He's going to be a superb player, world class," said Bayern Munich coach Jupp Heynckes of Niklas Sule, and it is hardly an unreasonable exaggeration.
The former Hoffenheim star has had an excellent debut season in Bavaria and has even filled in in midfield when called upon, looking comfortable and solid wherever he is.
"In a couple of years, he'll be the most sought-after central defender in Europe," Heynckes continued, providing Mats Hummels and Jerome Boateng with some competition as Bayern's star defender.
Goncalo Guedes | Valencia
Leaving Paris Saint-Germain for a temporary switch to Valencia turned out to be a great decision for 21-year-old winger Goncalo Guedes.
The Portuguese has been a constant presence for Los Che and has been central to their fourth-place finish.
Hirving Lozano | PSV
The Mexico international had a wealth of offers as he prepared to leave Pachuca for his European adventure.
Manchester City seemed the favourites to snap him up, but PSV were able to jump in ahead to convince him to take the leap to Netherlands instead and it is a decision that has paid off already for the winger.
Lozano has been a hero for PSV since his arrival and helped fire them to the top of the league early on in the season.
After winning the Eredivisie title, Lozano is expected to shine for Mexico at the World Cup and some big offers are expected to follow.
Douglas Costa | Juventus
Ditching Bayern Munich for a move to Turin in the summer has shown to be an excellent decision for Douglas Costa.
The Brazilian winger made the temporary switch at the start of the season, but Juventus will be determined to make it a permanent deal after seeing him notch 12 assists in the Italian top flight to help them to another Serie A title.
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Milan Skriniar | Inter
The Slovakian centre-back needed just one season at Sampdoria to persuade Inter that he was worth heavy investment and made the switch to the Nerazzurri last summer.
The 23-year-old made clear early on this season that he will be a reliable presence at the heart of the defence for years to come, assuming they can hold off the big bids they are sure to receive.
Kyle Walker | Manchester City
It seemed like an ideal match when Manchester City splashed out to sign Kyle Walker from Tottenham last year, and the partnership has lived up to expectation.
Ambition convinced the right-back to head to the Etihad Stadium and it has taken just a year to win the Premier League title as a key member of Pep Guardiola's team.
Neymar | Paris Saint-Germain
The €222 million signing’s first season in France has been plagued by on-field clashes with team-mates and constant reports that he is on his way to Real Madrid, but his performances have proved he is worth the hassle.
Although Neymar’s season was cut short by injury, his 19 goals and 13 assists in 20 Ligue 1 games helped the Parisian side retake the title with ease and they will be gunning for European glory next term.
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Ederson | Manchester City
Manchester City’s attacking prowess takes centre stage amid their blistering displays, but the importance of Ederson can hardly be overstated.
The goalkeeper was brought in to fit Pep Guardiola’s specific type for the position and immediately looked comfortable starting City’s attacks as well as stopping opponents’.
James Rodriguez | Bayern Munich
The Colombian left a difficult situation at Real Madrid and walked into a great one at Bayern Munich.
James has been one of the top performers as the Bavarian side strolled to another Bundesliga title, getting seven goals and 11 assists.
He joined on a two-year loan deal, but Bayern have already declared they will act on their option to buy him.
Mohamed Salah | Liverpool
The undisputed star of the Premier League, his 43 goals in all competitions helped fire Liverpool to a fourth-place finish in the top flight as well as a place in the Champions League final.
The electrifying Egyptian’s success has no doubt made many at Chelsea regret giving up on him so early as he takes a key role in a potentially glorious era at Anfield.