After the match, teammate Alexandros Katranis spoke to the media, and was baffled over the decision, among others that have gone against them in recent weeks.
"It is impossible when we play 11 against 14, 15, I don't know. The VAR - two games in a row - called the referee to review his decision and you want to tell me they reviewed this today on Diego, and it's a red card?! Come on," he said.
He added, "First of all, we have a corner and the guy takes a hug to Diego, maybe he wants to kiss him, I don't know. He put him down, like we fight here, and then both of their legs get stuck, he [Luna] tries to turn, and he gets a red card?! Come on. We need to do something about that."