Chelsea are close to signing Barcelona youngster Marc Guiu, according to Marca. The 18-year-old made his breakthrough to the first team during the 2023/2024 season. Guiu finished the campaign with two goals in seven appearances across all competitions. However, the Blues have triggered Guiu’s £5million release clause, beating off competition from Bayern Munich. It is understood that new Chelsea manager, Enzo Maresca, has spoken to Guiu several times. Maresca is planning to have the teenager in the first team next season. Transfer: Chelsea trigger Barcelona striker’s release clause after Maresc…