The Chilean has scored 11 goals since completing a £31.8m move from Barcelona in the summer and has gained heavy plaudits from a number of coaches, fellow players and media men around the English top flight.
Whilst, his performances on the field have been top notch, the former Udinese man has shocked some by claiming he has struggled to adapt in England and that he still has more to give.
“Little by little I am gaining the confidence of my team-mates and we’re getting to know each other better,” he told AS. “At first I did struggle to understand them – to guess what spaces they would run into, their movements and what their gesturing meant.
“Now I know all of their virtues, I know more now what they are like and that makes me feel much more relaxed and allows me to enjoy my game more.
“Like anywhere else, first it’s about getting to know your new surroundings, getting your bearings. Almost unconsciously, I started to memorise the movements of my favourite team-mates and starting to learn how to help them.
“I know that I still have a lot to improve on and they have let me know what areas need work: to spend less time on the ball, to play more one-touch passes to instigate counterattacks – that’s vital.
“I need to continue learning because those quick-passing moves are key in the Premier League and especially at Arsenal.”