The talented right-back traded Barcelona for North London alongside Jon Toral in the summer of 2011, following in the footsteps of former idol Cesc Fabregas.
Initially joining as a 16-year-old, Bellerin primarily represented the youth teams before breaking through to the first-team squad this season following an apparent injury crisis.
With fellow right-backs Mathieu Debuchy and Calum Chambers out of action, the now 20-year-old seized his opportunity and established himself for an extended period of time as a first-team regular.
With 11 Premier League appearances under his belt since December, the decision to leave Barca at an early age has paid off and Bellerin admits he is thankful for how his big career decision has turned out.
“I took the opportunity when it came. If I had stayed in Barcelona, I don’t know whether I would have reached the top. You never know,” he admitted to Marca.
“In Spain, when things aren’t good England is a good option. There are players who like to stay close to home, but sometimes you need to move out and try new challenges elsewhere.
“I have worked as hard as I could and I always maintain the mentality of reaching for the top.”
Aside from his Premier League appearances, Bellerin has also started matches in the Champions League and the FA Cup where his side have booked a Wembley semi-final date with Reading.
It has been a dream campaign for the youngster, and after scoring his first goal for the club in the 5-0 thrashing over Aston Villa in February he will be keen to end the campaign with his first winner's medal.