Giorgos Karagounis has expressed his disappointment at Greece dropping points but insisted they will get three points against Slovakia.
Fulham have announced the signing of veteran Greek midfielder Giorgos Karagounis, 35, on a free transfer until the end of this season.
Greece moved up to 12th in the latest edition of the FIFA/Coca-Cola World Ranking, their highest position since October 2011, thanks to a mixture of passion and positive play.
Coach Joachim Low has said he wants Germany to show a "killer instinct" and take their chances against tough-tackling Greece in Friday's UEFA EURO 2012 quarter-final.
Georgios Karagounis scored the winning goal as Greece recorded a shock 1-0 victory over Russia to reach the UEFA EURO 2012 quarter-finals at the expense of their opponents.
Czech Republic have rescued their UEFA EURO 2012 campaign with a 2-1 victory over Greece in Group A, with early goals from Petr Jiracek and Vaclav Pilar doing the damage.