The Brazilian attacker is one of the chief architects of the brilliant season Arsenal are having, which could end up with the club winning their first Premier League title in almost two decades.
Martinelli was signed from then-Brazilian fourth division club Ituano in the summer of 2019 when he was still 18.
Cagigao played a massive part in identifying the player for the Gunners then when he was their head scout and admitted that several big clubs missed the potential Martinelli showed.