The Argentine has been with the Gunners since 2010 but he has struggled to make a name for himself in north London.
He has been on loan at four clubs during that spell – Oxford, Sheffield Wednesday, Rotherham and Wolves – but has had little success at each.
The 24-year-old has featured just three times in the EFL Cup for Arsenal this season with Petr Cech occupying the No1 spot and David Ospina playing in the Champions League.
Emiliano Martinez is determined to be Arsenal's No1
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I always believe in myself. I was a big player at my former club in Argentina so I can be a big player here. I believe in that and I won’t stop until I’m the Arsenal No 1.
But Martinez insists he won't stop working until he becomes the Arsene Wenger's first choice.
“You expect to be in the squad at the end of the week and I’m not, so that’s why I have to do something about it,” he told Arsenal Player. “The chance will come so I need to be ready.
“I’ve always been positive. When I came here, I had eight goalkeepers in front of me and that’s when I thought, ’It’s going to be a long journey’. Year by year I’ve been growing, getting bigger, more powerful and so I thought, ‘Why not?’.
Emiliano Martinez had made three appearances for Arsenal this season
Emiliano Martinez is yet to force his way into Arsene Wenger's plans
“I always believe in myself. I was a big player at my former club in Argentina so I can be a big player here. I believe in that and I won’t stop until I’m the Arsenal No 1.
“Arsenal is like a family. It’s my club and I’ve been here for seven years so it feels like home. I’m here early for breakfast and I’m one of the last to leave. I really enjoy it here so that’s the reason why I have to be positive.
“There’s nothing to be afraid of. One of the best things in the world is to play for a big club. It’s every kid’s dream so I’ve just got to enjoy the fact that I’m playing for a big club.”