Slovakia has recorded some decent results in recent friendly matches and Laszlo believes his team faces a stern test.
"It's a team capable of winning friendly matches away from home, it defeated the Turkish and Danish teams," he said.
"The Slovak team can cause problems for any other team. Therefore we have to be prepared, 100 per cent."
Laszlo also admitted his side will be the underdog but does not feel there is much of a difference between the two squads.
"Slovakia is favourite," he said. "(But) Slovak footballers do not have three legs and five arms, they are the same people as we are. The only difference is that we're playing with a yellow shirt - and they have blue."
Slovakia defender Marek Cech believes the national team is benefiting from a number of players plying their trade in some of Europe's best leagues and a lack of egos.
He said: "Slovakia is a small nation and so every player in the national team is a key man. We have a good balance in the side, with no big stars or celebrities.
"Our team is young and has the right attitude, while we've got good players playing for quality sides in major leagues. The standard of the Slovak league is also on the up."
Greece faces a trip to Latvia, where a late Kyriakos Papadopoulos goal gave it a 1-1 draw the last time it travelled to Riga as part of its EURO 2012 qualifying campaign.
Striker Dimitris Salpigidis is missing due to a broken toe but Greece, which moved up to 11th in the FIFA World Rankings earlier in the week, will still be a firm favourite.
Meanwhile fellow Group G participant Bosnia-Herzegovina travels to Liechtenstein.