Speaking after his debut for the Gunners in the League Cup, the Argentine revealed his aspirations to become an integral part of Arsene Wenger's squad
The 20-year-old was given his debut for the Gunners in 6-1 victory over Coventry in the League Cup, and went on to state his ambition to make an impact at the London club.
When asked about his chances of breaking into the first team on a regular basis he responded "I am working for that. They played me and I responded well, so they know they can rely on me," the goalkeeper told Ole.
"Arsene is very professional, and is very helpful. He treats the best player and the 17-year-old lad the same way. And he has the same demands. And if he has to play the kid that is better than the veteran, he will."
The Argentina Under-20 international has been brought up the pecking order at the Gunners after both Wojciech Szczesny and Lukasz Fabianski picked up injuries.
Martinez also spoke about his ambitions to break into Argentina's national team in the future.
"I know that being in the Premier League, one day Sabella [Alejandro] is going to look at me."