Spain and Portugal will start an analysis of whether to bid for the 2030 World Cup, the countries' football federations said on Saturday.
They did not make any mention of Morocco, who were previously also said to have been involved.
"After holding several meetings, the football federations of Spain and Portugal can confirm that they are set to begin an in-depth analysis of the possibility of presenting a joint bid to host the 2030 World Cup," a joint statement said.
"Both federations would like to take this opportunity to state that the governments of both countries have been properly informed about this process, given that they will have a key part to play in its development.