Atletico Madrid have completed the signing of Greek goalkeeper Dimitrios Stamatakis Vailakakis.

Stamatakis will join Atletico from the AGA Academy and initially be registered with the youth team.

"As for any young player, signing for this team is a very big dream and I hope to do my best," said the Greek goalkeeper.

Stamatakis has come through the academies with Ionikos and Atromitos. He had trials with Cagliari before Atletico stepped in.

The 18 year-old has agreed a deal to 2024.