The Catalan club are offering midfielder Carles Alena and forward Martin Braithwaite in a deal to have the 18-year-old move from Mestalla to Camp Nou.
The American international had a smooth breakout campaign with the Spanish powerhouse last season, making 32 caps and scoring once for the former champions.
The talented forward’s outstanding performance earned him a call-up to the United States men’s team and has already played six times for the Red and Blues stripes.
The Arsenal academy graduate represented England at youth level before finally making a decision to play for the country of his birth.
The attacking midfielder has been on the radar of several clubs including the Gunners.