Spanish football clubs on Friday joined the relief operation to help rebuild eastern parts of the country around Valencia, where at least 158 people died in flash floods.
Rescue teams continued the search on Friday for victims and survivors missing since a year's worth of rain fell in eight hours on Tuesday, destroying bridges and cutting off road and rail links.
"Unfortunately there are dead bodies in some vehicles, transport minister Oscar Puente said.
"Dozens and dozens are missing," added Angel Victor Torres, minister in charge of cooperation with Spain's regions. "They, unfortunately, could add to the total of 158 dead."
Spanish football chiefs said games taking place this weekend would publicise a Red Cross fundraising campaign over the public address systems.
"Spain's professional football joins the condolences and expresses its solidarity with the families of the victims and the missing," La Liga said in a statement.
Real Madrid, which came under fire for poor sportsmanship for boycotting the Ballon d'Or award ceremony in Paris on Monday night, announced it would offer one million euros to the Red Cross.
"Real Madrid has decided to support this campaign to help the many families who are in a critical situation and need all our help and solidarity," Madrid said in a statement.
Spanish football authorities postponed seven midweek ties in the annual Copa del Rey competition.
Games scheduled for the eastern region this weekend have also been rescheduled including the clash between Valencia and Real Madrid after Valencia transformed their Mestalla stadium into a drop-off point for donations of food and other essential items.
At matches that do go ahead, fans will be asked to observe a minute's silence before kick-off as a tribute to the dead and the victims, La Liga said.
Ethics debate
On Friday, several riders in MotoGP said they felt it would be unethical to stage the season's final race in Valencia in the aftermath of the floods.
Six-time world champion Marc Marquez said funds needed to go to people devastated by floods instead of being spent on repairs for the event.
"Ethically speaking, I don't think it should be held," said the 31-year-old.
Marquez, who rides for Gresini Racing, added: "As a Spaniard it is very difficult to see these images. We know that the area around the circuit has been badly damaged, but it doesn't make sense to spend money on repairing that. Resources should go to helping people."
The season-ending race could decide the outcome of the 2024 championship.
Championship pacesetter Jorge Martin boasts 453 points from 18 of the season's 20 races. Ducati's Francesco Bagnaia lies 17 points behind in second place heading into the penultimate race in Malaysia this weekend.
"Valencia will be difficult," said Martin. "Even if the track is OK and everything is good, it's a difficult situation in terms of respecting the people there. I think the best option will be to race elsewhere."
Bagnaia added: "in Valencia, racing is like a party, it's a moment to enjoy. Knowing the situation right now, that's not correct.
"We have always been super respectful of what's happening around the world. It could be wrong, to race there. If it was my choice, I would prefer not to race there."
Change
Circuit organisers initially said the track was in good condition and planned to stage the event as scheduled between 15 and 17 November.
But on Friday afternoon, they announced the race would be cancelled and staged elsewhere.
"We have been in constant contact with the local authorities and the circuit to best assess how we can help and how we should proceed," said MotoGP in a statement. "We have a responsibility to every region where we race that goes far beyond the sport and the events.
"In lieu of racing in Valencia, MotoGP will instead race for Valencia. The championship will put our collective efforts behind backing the relief funds already in place to ensure our positive impact can connect with the area in the way it best serves the people and communities we have been part of for so long."
