Bruno Guimaraes wasted no time in getting to work at the Sobha Realty Training Centre, and you can go behind the scenes to see what our new signing got up to on his first day as a Gunner.
After completing his move from Newcastle to north London, Bruno was greeted by a letter from his Brazilian teammate Gabriel before arriving at our training ground.
Our new no.39 got to grips with his new surroundings and wore the Arsenal colours for the first time, which Bruno was delighted to see featuring the gold Premier League patch.
Press play on the video at the top of the article to see what our latest signing got up to on his first day as an Arsenal player.