Mikel Arteta is now in the midst of his 14th transfer window during his time as our manager, with many new faces entering the doors at the Sobha Realty Training Centre in that time.
The boss has tweaked his squad in most of those, adding plenty of quality in all positions to help us improve campaign after campaign - but can you remember every player he has signed?
There have been 40 across the past six-and-a-half years, so have a go at naming as many as you can below - but be quick as you've got just 10 minutes!
Make sure to share your score to challenge your friends, and delve into our other Arsenal-themed quizzes.
