The 18-year-old signed from Ituano in Brazil this summer and has already made his Premier League debut, coming off the bench in the opening game of the season against Newcastle.
He is not expected to be a regular in the first team this season, with the likes of Alexandre Lacazette and Pierre-Emerick Aubameyang ahead of him in the pecking order, but he is happy to be learning from Emery and Edu at the Emirates.
‘The coach [Emery] is a great person, and I’m learning a lot from him on a daily basis,’ Martinelli told Lance.
‘I try to do my best in training so that, when I have the opportunity, to grasp it with everything.
‘Edu is an exceptional guy, a great professional, victorious and who made history with the Arsenal shirt.
‘We talked a lot when I arrived and, undoubtedly, having a person like him around motivates us more and more.’
It has been a huge change for the teenager, moving from Sao Paulo to London and to a club full of household names.
Martinelli admits that it was nerve-racking meeting his new team-mates because he has been watching them on the small screen from Brazil.
‘I’ve arrived in a new place, with a different culture, another style of play and only with time and working day-to-day will I develop in the best way possible,’ the forward continued.
‘I was received in the best way possible. Being very young, I got a little shy, because I only saw these players on television and in video games.
‘But they welcomed me very well, making me feel at home and I try to learn from them on a daily basis.
‘My adaptation has been the best possible. I had a strong pre-season where I was able to play a good role and showcase my qualities.
‘I know the squad is packed with great players, but I know what I can do and my goal is to help the team.
‘I think we can achieve great things this season by winning titles and marking our name in Arsenal ’s history.’