The Brazil international made 36 appearances in all competitions last season, scoring eight goals in his debut campaign for the Blues.
However, Alonso has used him sparingly in 2026/27, but he made his first Premier League start in the 2-0 weekend win over Manchester United.
His performance against the Red Devils reminded Alonso of just how talented the 20-year-old is and the Spanish coach wants to retain him.
However, reports from Spanish outlet Diario AS claim Barcelona are eyeing up an offer, if he's not given a greater starting role at Stamford Bridge in the coming months.
Any bid will likely be a loan until the end of 2026/27 as Barca aim to secure two stars in each attacking position.
