It's been a busy first day for Leandro Trossard after he put pen to paper on his new contract at the club, and you can see the first images of him in our colours below.
The attacking midfielder arrived from Brighton & Hove Albion, and was quickly caught on film by our club photographer, produce some social media footage for our channels and undertake his first interview as a Gunner, allowing him to explain the move and allowing our supporters to find out more about our new recruit.
Then he was out onto the training pitch at London Colney to meet his new teammates and get stuck into a session ahead of Sunday's trip to Manchester United.
See everything that went on in our gallery:
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