Key stars who will decide the fate of Europe's top clubs this season

European football is entering the preparation phase for the new season with a flurry of friendlies and training camps. This summer's transfer window has also drawn attention as clubs look to bolster their starting lineups or strengthen their squads.

Notable deals include English midfielder Elliot Anderson's move from Nottingham Forest to Manchester City and Ivorian defender Yan Diomande's switch from RB Leipzig to Real Madrid. The summer market has been quieter than in previous years, but there are still intriguing rumors, such as Rodri potentially leaving Man City for Barcelona.

Against that backdrop, Al Jazeera Sport has highlighted the players most crucial to their teams' success in European competitions this season, backed by the statistics that prove it.

Declan Rice – Arsenal

After a disappointing World Cup, Declan Rice (27) will want to reassert his importance at Arsenal. The former West Ham man was a pillar of the Gunners' defensive system, ball retention, and especially their set-piece play last season. Arsenal scored 24 goals from dead-ball situations, the most in the league, with eight coming from Rice's deliveries and three direct assists. The arrival of Bruno Guimaraes from Newcastle in midfield will ease Rice's burden, but his role in defending the title remains undeniable.

Bruno Fernandes – Manchester United

As the heartbeat of Manchester United since his arrival, Bruno Fernandes could be the most irreplaceable player on this list if he suffers a long-term injury. Last season, the attacking midfielder set a record with 21 assists in the Premier League, led the division in chances created (45) and key passes, and ranked second in expected assists. Beyond goal contributions, Fernandes generates a huge share of United's attacking opportunities. Casemiro's departure will affect his workload, and how United fills that void will directly impact Fernandes' form.

Cole Palmer – Chelsea

Cole Palmer's importance to Chelsea lies in his attacking output. His breakout 2024/25 season saw him directly involved in 29 Premier League goals. Chelsea have gradually built their play around Palmer's creativity and ability to operate between the lines. The arrival of Morgan Rogers promises to support him next term. After a less productive 2025/26 campaign, Chelsea need Palmer back at his peak if they are to compete with England's best.

Erling Haaland – Manchester City

The numbers behind Erling Haaland at Manchester City are staggering: 27 Premier League goals in 2025/26, enough for a third Golden Boot. That gives City a striker who can turn their dominance of possession into points. Haaland's presence forces opposition defenders to commit extra men, creating space for teammates. For City, if Haaland keeps scoring regularly, their title chances rise considerably. His only weakness is creating chances for himself, which could become more pronounced if Rodri leaves.

Dominik Szoboszlai – Liverpool

Dominik Szoboszlai was a key figure in Liverpool's 2024/25 title win and helped the team navigate a less impressive 2025/26. The Hungarian midfielder recorded seven assists, created 78 chances, and made 68 key passes, while leading the team in successful passes in the final third. He has also been deployed at right-back, showing his versatility. With his chance creation, pressing, and flexibility, Szoboszlai is nearly irreplaceable in Liverpool's current setup.

Kylian Mbappe – Real Madrid

Kylian Mbappe's form this season will determine whether Real Madrid can stop Barcelona from winning a third straight La Liga title. In 2025/26, the French forward scored 25 goals with five assists in 31 league appearances, securing the Pichichi for a second consecutive year. Across all competitions, he netted 42 goals in 44 matches and was the Champions League's top scorer with 15. Real's issue is not Mbappe's scoring ability but how best to leverage the players around him, particularly Jude Bellingham. That task may fall to new manager Jose Mourinho.

Lamine Yamal – Barcelona

Lamine Yamal's importance to Barcelona has grown as Robert Lewandowski ages. Last season, Yamal (19) scored 16 goals with 11 assists in 28 La Liga matches, playing a major role in Barca's domestic treble. His ability to create chances and take on defenders forces opponents to alter their defensive setups.

Ousmane Dembele – Paris Saint-Germain

As the reigning Ballon d'Or holder, Ousmane Dembele needs little introduction. The blend of his finishing, creativity, and involvement in every attack gives PSG flexibility. In 2024/25, he scored 35 goals with 51 direct goal involvements. Last season, despite interruptions, he still recorded 10 goal involvements in eight Champions League games and 17 in 22 Ligue 1 appearances.

Harry Kane – Bayern Munich

Moving to Bayern Munich turned Harry Kane into a true goal machine. In 2025/26, he scored 36 goals in 31 Bundesliga matches, plus five assists, averaging a goal every 66 minutes. It was his third straight Bundesliga Golden Boot, making him the first player in history to do so in his first three seasons. His 36 goals were also the most in Europe. Kane added 14 more in the Champions League. For Bayern, he offers something nearly priceless: near-guaranteed goals every season.

Marcus Rashford – Manchester United (current)

The final player on this list may be the most influential, no matter where he plays. Marcus Rashford spent last season on loan at Barcelona and quickly rediscovered his form after a difficult spell at Man United. His future remains unclear: he could return to Old Trafford under Michael Carrick, who replaced Ruben Amorim. Last season, Rashford scored eight goals in 32 La Liga appearances for Barca, showing he is getting back to his best. If he regains top form, he will be a major threat to any defense.