Arsenal have announced on their official website that Sead Kolasinac is their first summer signing.
The 23-year-old will sign a long-term contract with the club after leaving Schalke 04 in Germany.
Already pictured on Arsenal.com with his new jersey, the left-back impressed in the German Bundesliga and will be looking to bring more of the same to the English Premier League.
"It feels really good and I'm pleased to be here," he told the club's official website.
"I'm happy to have signed at Arsenal for five years and I'm really pleased.
Arsenal has a huge tradition and I followed the club as a young boy, in the days of Jens Lehmann and Thierry Henry."