Albert Sambi Lokonga is a Gunner - and he's wasted no time getting started in north London.
After we announced his arrival from Anderlecht on Monday afternoon, the Belgium international took part in a training session with his new team-mates for the first time, wearing No 23.
The midfielder will continue to train with Mikel Arteta's squad, as we up the intensity of our pre-season preparations with this week's trip to Orlando, Florida.
Our club photographer was also there and sent back these pictures:
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