Mikel Arteta delighted in Gabriel Martinelli's star performance against West Ham on Wednesday, but the Arsenal boss called on the youngster to 'mature' physically in order to take his game to the next level.
Martinelli fired Arsenal in front with a Thierry Henry-esque strike against the Hammers, powering past Vladimir Coufal before opening his body to find the far corner past Lukasz Fabianski.
Emile Smith-Rowe wrapped up the three points with a clean strike towards the end of the game, but Martinelli's performances have got Arsenal fans talking having made four goal contributions in his last five league games.