Olympics bosses believe London is as well prepared for the Games as "any city in history", Boris Johnson has insisted.
The Mayor of London also suggested transport networks were "holding up", but he admitted it was too early to "count your chickens".
Mr Johnson dismissed the threat of strike action by UK Border Agency staff, claiming most workers would want to "get behind" the Games by turning up to work.
He told BBC1's Andrew Marr Show: "I don't think that whatever they do it will disrupt the Olympics or our preparations or disrupt our ability to get people through and in on time to their venues, get the athletes, the Olympics hierarchs, through to where they need to go.
"I do think if you look at the numbers who voted it is a very, very badly supported strike. I don't think people will want to let down the Olympics, I think the overwhelming majority of people working on the Borders Agency will want to get behind and come to work."
Mr Johnson said the Olympics were going to be a "gigantic schmoozathon" that would shine a spotlight on British business.
International Olympics Committee president Jacques Rogge believes London has met the standards set by other hosts, the mayor claimed.
Mr Johnson said: "If you look at what Jacques Rogge had to say last night, he's been in London for a few days, he thinks that our city is as well prepared as any city in the history of the Games."
He added: "So far the traffic system and the transport networks generally are holding up well, touch wood, you can never count your chickens or be complacent about this, but it's okay at the moment.
"I think possibly what we are going through at the moment as a nation, as a city, is that necessary pre-curtain up moment of psychological self-depression before the excitement begins on Friday. It is only natural that people should be tense, that they should be expectant and there are loads of things we need to get right."