The teenager got involved in the session earlier today.
Goalkeeper at Arsenal Academy u18s and england u17s.
The Finnish youth international is set to start for Arsenal against Borussia Dortmund in the Uefa Youth League.
Arsenal could call on Ryan Huddart against Anderlecht if they get desperate.
Arsenal face a goalkeeping crisis as Emiliano Martinez and Ryan Huddart are drafted in for Champions League duty against Anderlecht.
Arsenal could call on Ryan Huddard against Anderlecht due to a goalkeeping crisis.