Marc Guiu Paz

Chelsea On 1 July 2024, Guiu joined Premier League side Chelsea for a reported €6 million fee, signing a five-year contract with the club. On 18 August, he made his debut for the club, as a substitute, in a 2–0 loss against Manchester City in the league. On 19 December, Guiu scored a first-half hat-trick against Shamrock Rovers in a 5–1 victory in the final league match of the 2024–25 UEFA Europa Conference League.

On 6 August 2025, Guiu joined newly promoted Premier League club Sunderland on a season-long loan. On 31 August, Chelsea recalled Guiu from his loan, after making two league appearances and scoring a goal in an EFL Cup tie against Huddersfield Town, due to Liam Delap's injury. Later that year, on 22 October, he scored his first Champions League goal with the club in a 5–1 victory over Ajax, becoming the second-youngest player to score for Chelsea in the competition, behind only his teammate Estêvão Willian, who also found the net in the same match.

RB Leipzig On 1 September 2026, Guiu joined Bundesliga side RB Leipzig for a reported €16 million fee, signing a contract until 2031.

International career Guiu has represented Spain at Under-17 and Under-19 level.

In May 2023, he was called up by Spain U17 to compete in the 2023 UEFA European Under-17 Championship, in which he became the competitions joint top scorer with four goals, alongside Paris Brunner, Robert Ramsak and teammate Lamine Yamal. In November 2023, he represented Spain U17 in the 2023 FIFA U-17 World Cup, when he scored two goals.

Style of play Barcelona youth coach Iván Carrasco describes Guiu as a "classic '9', a specialist in the area who exploits his physical power". He has been compared to Samuel Eto'o. He has a good high ball game, pace, strength and work-rate.

Career statistics

Honours Chelsea UEFA Conference League: 2024–25 FIFA Club World Cup: 2025 FA Cup runner-up: 2025–26

Individual UEFA European Under-17 Championship joint top scorer: 2023 UEFA European Under-17 Championship Team of the Tournament: 2023