Image source, Getty Images
Guiu was portion of nan Chelsea squad that won nan Club World Cup
Mandeep Sanghera
BBC Sport journalist
Sunderland person signed teenage Chelsea guardant Marc Guiu connected indebtedness for nan 2025-26 season.
The Spaniard, now 19, moved to Stamford Bridge for £5m from Barcelona successful July 2024 and scored six goals successful 16 matches for nan Blues past season.
Describing himself arsenic "a powerful striker" and "natural goalscorer", Guiu said of his transportation to Sunderland: "This twelvemonth is simply a immense opportunity for maine to thief return this squad wherever it genuinely deserves to be, and I can't hold to get started."
Sunderland earned promotion to nan Premier League by beating Sheffield United successful nan Championship play-off last successful May.
Guiu becomes nan Black Cats' ninth signing of nan summer.
He came done Barcelona's celebrated La Masia academy and scored conscionable 33 seconds aft coming on to make his debut for nan nine successful a 1-0 triumph against Athletic Bilbao successful October 2023.
After moving to England, he scored 3 goals against Shamrock Rovers successful nan Conference League past play to go Chelsea's 2nd youngest subordinate to nett a hat-trick.
Sunderland sporting head Kristjaan Speakman said: "In a indebtedness acquisition, we not only person to person nan subordinate but besides nan genitor club, and we convey Chelsea for placing their spot successful us.
"Most importantly, Marc wanted to travel to Sunderland and beryllium a portion of our club. The title for his signature was important and he had galore high-quality options.
"Marc's a progressive striker who has cardinal attributes that align pinch nan domiciled successful our team."