Gekas is in bullish mood prior to the vital away match on Wednesday evening. He believes it will be their hosts who will need to "watch out" when battle commences, according to Goal.com.
Greece striker Theofanis Gekas has stated that his nation will go crazy should their football side manage to upset Ukraine in their World Cup play-off second leg on Wednesday evening.
The 2004 European Champions were held to a scoreless draw in Athens at the weekend, but there is a sense of confidence that they can build on that result to book their place in South Africa.
"It`s always something special for us Greeks to be involved at a major tournament. Of course it would be a huge success for us to make it to South Africa because we failed to qualify for the last three World Cups," Gekas told FIFA.com.
"Now we have a great chance and it would be pandemonium back home if we made it.
"For me personally - and I think this goes for every member of our squad - a World Cup appearance would be a massive personal achievement. It doesn`t get any better than pitting yourself against the best players in the world," continued the prolific striker.
"We`re not playing against one individual, we need to be wary of the whole team. It`s no good singling players out. If we stay focused and play our game, it`ll be the Ukrainians who`ll need to watch out."