Arsenal are more than happy with their 19-year-old winger Marqunhos, according to Fabrizio Romano.
The Gunner face FC Zurich on September 8 in Europa League, where the 2003-born opened the score for his side scoring his debut goal in his offcial debut match with the club.
The Brazilian made a move to the Emirates this summer from Sao Paulo for a €3.5 fee.
As the Italian journalist reports, Mikel Arteta and his board consider the starlet as one of the key figures in Arsenal's future.