New Zealand will know even a miracle might not be enough to find a way past Mexico and book their place in the 2014 World Cup in Brazil.
Mexico lead 5-1 after the first leg at the Azteca Stadium, and the Kiwis need to find some kind of inspiration from somewhere to win by at least four goals in the second leg in Wellington.
After a disastrous qualifying campaign, Mexico only snuck into the playoffs by the skin of their teeth courtesy a huge help from neighbours United States. However, that horror campaign has been put behind them, and Mexico already have a foot in another World Cup thanks to the huge first leg victory.
New Zealand coach Ricki Herbert has not given up hope just yet and wants his side to go and attack Mexico "with smiles on their faces."
"Isn't that the beauty of sport around the world? The anticipation, the excitement, the belief, the uncertainty," Herbert said.
"Who knows what tomorrow night might bring? The doom and gloom some people have wanted to paint is not with us. We'll be up for this and we'll certainly be giving it the best we can.
"We're back home, we've got a good crowd and we're looking for a good positive performance out there."
Captain Tommy Smith also refused to believe that the tie was beyond them and is looking for a monumental upset. "We have to believe we can win this," he said. "I believe we've got the attributes to do that."
Mexico, while being confident of a positive overall result, are not expecting a walk in the park in the second leg either and coach Miguel Herrera wants his side to go out in Wellington with complacency as far away from their minds as possible.
"We're not complacent or thinking it's already over," Herrera said. "In New Zealand we'll start at 0-0 and we'll look to hurt them by scoring a goal. We need to stay calm, we're not there yet."
Where to Watch Live
The game is scheduled for an 11.30 am IST start with no live coverage in India. To watch the match through live streaming online via Al Jazeera Sport in the Middle East and North Africa, click HERE. To catch the action live online in the U.S. courtesy ESPN, click HERE. To watch the match streaming live in the U.K., click HERE.