Greece were surprise champions four years ago in Portugal but the defence of their crown lasted just two matches at Euro 2008, with Rehhagel's men losing 2-0 to Sweden and 1-0 to Russia in Group D.

They complete their campaign against group winners Spain at the Stadion Salzburg Wals-Siezenheim tomorrow, but while the match is effectively a dead rubber for both sides, Rehhagel is eager to see his team go out on a high.

"It is my intention and I have told my team to play at 100%, not to hold back, but to give a finish worthy of our team," said Rehhagel, who is set to give some of his squad players a chance against the Spanish.

"Also, the new faces will have to show they deserve to play in the national team."

Greece have a poor record against Spain down the years, winning just one of nine encounters with the Iberian nation and losing six.

The most recent defeat came in a friendly in Thessaloniki last August when Spain twice battled back from deficits to win 3-2 thanks to goals from Valencia duo Carlos Marchena and David Silva (two).

That match will have given Rehhagel a glimpse of how tough tomorrow's clash is likely to be, although it is set to be a new-look Spain side running out in Salzburg with coach Luis Aragones also set to ring the changes.

"The Spaniards have outstanding players, even though some of them will not be playing," said Rehhagel.

"We have looked at their squad intensively and those ones who have not had the chance to play much will be given even more of a chance."

Greece's defeat to Russia has left Rehhagel with a sour taste in the mouth after seeing his side have what appeared to be a legitimate goal from Angelos Charisteas disallowed for offside late on.

However, Rehhagel felt his side's attitude during that match was ideal and is looking for them to repeat that against the Spanish.

"We have to play tomorrow along the same lines as we did against Russia," he said.

"I think our attitude was spot on and I think we scored a perfect goal which was not allowed - I did not know that during the (post-match) press conference but, having seen footage, I do know that now."

Striker Fanis Gekas will be missing for Greece after suffering a broken cheekbone against Russia, while Giourkas Seitaridis, Vassilis Torosidis and Giorgos Karagounis are also likely to be sidelined through injuries.

Goalkeeper Antonis Nikopolidis and defender Paraskevas Antzas, who announced following their defeat to Russia they would be retiring from international football, could make their last appearances for Greece.

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It has been suggested Spain coach Aragones will name almost an entire new side for the match against Greece to the one that was unchanged for the victories over Russia and Sweden in their opening two matches.

That means Jose Reina is set to get the nod in place of Iker Casillas, and the Liverpool goalkeeper, who has won nine caps for Spain, insists it is always special to play for national team.

"Obviously, when you get the chance to represent your country in an official game it is something to be proud of," said Reina, who believes a change in personnel will not mean a change in standards for Spain.

"The level has to be same regardless. We are 23 players and the level should be the same.

"To play for your country is always a motivation. The team is already in the quarter-finals and those who will play tomorrow don't play normally, so obviously you feel proud."

Left-back Fernando Navarro could also be brought into the side in place of Villarreal's Joan Capdevila, with the Real Mallorca defender having only recently made his debut for Spain.

A good performance by Spain's second-string players tomorrow could push their claims for a starting spot in the quarter-finals, but Navarro claims all they can do is their best and then it is up to Aragones.

"We all know what is our task in the team, we try to do the best we can and the rest is for the coach, the important thing is to play well so the coach can count on us," he said.

Navarro is one of a number of players in the Spain squad whose future at club level is a matter of some debate, with Sevilla believed to be close to finalising his transfer from Mallorca.

Talking about his reportedly impending move, Navarro said: "I can only say that I am happy, that is something we have to leave to one side.

"As I have said, the important thing now is the national team, for our game tomorrow. The only thing I have in my head now is tomorrow's game and not Sevilla."

Aragones, meanwhile, defended his decision to make changes for their final group game, saying: "All the teams need to rest. We are a squad and a coach has to be intelligent and give a chance to the other players.

"Those who haven't played will have the chance to show why they are in the squad."