Cristiano Ronaldo will be absent from the Spain/Portugal delegation in Zurich for Thursday's World Cup vote due to injury.
Real Madrid star Ronaldo is struggling with an ankle injury and the world's most expensive player will remain in Spain to receive treatment on the problem in a bid to be fit to face Valencia in La Liga this weekend.
The Portugal captain had been set to go to Switzerland to support the Candidatura Iberica bid to host the 2018 World Cup but he has been forced to stay in the Spanish capital.
Other figures set to support the Iberian bid are Ronaldo's team-mate Iker Casillas, captain of World Cup winners Spain, plus the current coaches of the two national teams Vicente del Bosque and Paulo Bento, and famous former players such as Luis Figo, Fernando Hierro, Emilio Butragueno and Eusebio.
The Prime Ministers of the respective countries, Jose Luis Rodriguez Zapatero of Spain and Jose Socrates of Portugal, are also part of the bid team.
Former Portugal international Figo, one of the bid ambassadors, believes the Spain/Portugal bid would be a success if they won the right to stage the finals in eight years.
"To have the opportunity to host a World Cup is an honour and privilege for any nation," Figo told Fifa's official website. "In my personal opinion, I think that Portugal and Spain have everything you need to be model hosts, particularly given the passion for football in both countries.
"We've got good infrastructures in place, so let's hope we can win everybody over. I'm certain of one thing: it'll be an incredible 'fiesta', especially for Portugal for the simple reason that it would be the first time they've hosted the World Cup."
The Spain/Portugal bid is competing against England, Holland/Belgium and Russia to stage the competition.
Stay logged onto skysports.com and Sky Sports News to find out who will be successful in their bid on Thursday afternoon.
Who will win the bid for the 2018 World Cup?