Early goals from Petr Jiracek and Vaclav Pilar saw the Czech Republic revive their Euro 2012 campaign with a 2-1 victory over Group A rivals Greece in Wroclaw.
The Czechs were 2-0 to the good inside six minutes as midfielders Jiracek and Pilar made the most of some uncertain Greek defending.
Substitute Fanis Gekas pulled a goal back after a terrible error by Petr Cech, but Fernando Santos' side lacked the guile to carve out an equaliser.
The Czechs' opening 4-1 loss to Russia left them knowing another defeat would end their hopes of reaching the last eight, but they could hardly have wished for a better opening.
Jiracek put them ahead in the third minute as he ran on to Tomas Hubschman's pass to fire home, despite Greek keeper Kostas Chalkias getting a hand to his left-footed shot. Chalkias was then at fault for the second goal as he failed to cut out Theodor Gebre Selassie's low cross to allow Pilar to tap in his second goal of the tournament.
Chalkias' miserable day continued as he was forced off after just 21 minutes, having pulled up after playing a pass out to his defenders, with Michalis Sifakis coming on to replace him.
Greece thought they had pulled a goal back five minutes before the break as Georgios Fotakis headed in a Torosidis cross, but he was wrongly ruled to have been offside.
It should have been 3-0 seconds after the restart as the Czechs, whose captain Rosicky was replaced by Daniel Kolar at the break, again surged forward. Gebre Selassie found more joy down the right but Milan Baros could not get the ball out of his feet when just 10 yards out.
But it was the Greeks who found the net next thanks to a calamitous mistake from Cech. The Chelsea keeper came racing out for an aimless long ball but, distracted by Tomas Sivok, he lost control and substitute Gekas had the simple task of directing the loose ball into an empty net.
Buoyed by the goal Greece finally began to exert some control on the game with Karagounis and Samaras becoming increasingly prominent. But they struggled to create any genuine clear-cut chances, and struggled to test Cech after the Chelsea keeper's blunder, as the Czechs comfortably saw out the closing stages for a vital win.