Greece and the Czech Republic are struggling defensively ahead of their crucial second game.
The Greeks are without their preferred central pairing of Avraam Papadopoulos, out of the tournament with a knee injury, and Sokratis Papastathopoulos, who was harshly sent off in the 1-1 draw against Poland.
Events conspired against his team in Warsaw, but Greece coach Fernando Santos was angry that his players had not followed pre-match instructions. "Before the match, I made out a list of all the things the players should avoid doing -- and those are all the things they did," he said.
The Czechs' problems are of their own making, after they conceded four against Russia. Their coach, Michal Bilek, might be tempted to bolster his defence.
Goalkeeper Petr Cech wants his team be more aggressive going forward. "We have to go out and be attacking," he said. "But it will not be all-out attack as that would open us up at the back." If they were to lose, Bilek's side would be the first country out of the Euros.
Greece v Czech Republic,
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