I believe they're required to have an U-21 player on at all times, and it seems like it'll be Berdos to start. He is a 17 year old left winger. I'm sure Chalov will eventually make way for one of Chatsidis or Mythou. Would be nice to see all three of them at some point though.
Levediakos is a bit less constrained than us, as they have a number of players who are 19 already in their roster. Will be interesting to see how our guys stack up.