£17 million Arsenal striker Lucas Perez forgotten by many, had a training with the club under Unai Emery.
Perez arrived in north London from Deportivo La Coruna but having failed to impress under Arsene Wenger, he was restricted to have Premier League appearances.
Head coach Unai Emery takes a close look at what he has at his disposal ahead of the club's pre-season campaign, which gets underway at Boreham Wood on Saturday, July 14.
Arsenal then will travel to Singapore for the International Champions Cup where they will take on Atletico Madrid and Paris Saint-Germain.