Northern Ireland captain Steven Davis says the squad have all dreamed of reaching a World Cup Finals.
The midfielder was speaking at today’s manager's and captain’s press conference at the St Jakob-Park stadium in Basel.
"We have all dreamed of getting to a World Cup and we are 90 minutes away from that," said Davis.
“We have to give it our all. Any frustration from the other night is fuel for us.
"I think we have to be better in possession. We know we can play better and the fact the score is 1-0 means there is all to play for.”
Northern Ireland v Switzerland kicks off at 5pm GMT tomorrow and is live on Sky TV.