Manolas was awful for the national team. He really pissed me off and was a total primadonna, not taking the national team seriously and then being at fault for an embarrassing goal conceded against Liechtenstein in Euro 2020 qualifying in which the result was 1-1 in the end. I think that was the end of his national team career.
He used the national team to help him boost his club career, did great at the 2014 World Cup to get a big move to Roma and then he stopped playing with passion for the national team, it was quite disgraceful.
Sokratis made mistakes too in those years but not as bad, and in his case there is personal drama with our coach as well. I would definitely prefer him over Manolas. Sokratis always showed passion for the national team even when we hit rock bottom.
Siovas was another good CB who was kicked out of the national team last year by this coach who is very divisive and overreacted to a comment Siovas made about Manolas and Sokratis being important to the team (when it was clear that the coach had no intentions of inviting them).
So there is a lot of drama and with Tzavellas being suspended, we were left with Mavropanos and Chatzidiakos as CBs (not sure why Kyriakos didn't play, I think he is injured). They are still good players and we have a lot of depth at that position so we are lucky but they made costly mistakes today due to their inexperience.
EDIT-Sorry if what I am saying is confusing, I am quite angry now and my thoughts are all over the place