Spanish media on Sunday accused Formula One's governing body of trying to fix this year's championship following the penalty imposed to Fernando Alonso after qualifying.
The Renault driver, 12 points ahead of Ferrari's Michael Schumacher in the championship, was relegated from fifth to 10th for impeding Schumacher's teammate Felipe Massa in qualifying.
The Spaniard said on Sunday he did not consider Formula One to be a sport anymore.
"I love the sport, I love the fans coming here, a lot of them from Spain, but I don't consider F1 anymore a sport," said Alonso in Renault's motorhome, where reporters were summoned to see video evidence of the incident.
His country's newspapers backed the Renault driver on Sunday morning, slamming the decision to penalise him.
"Dirty war to stop Alonso from winning the title," was the headline on Spain's top newspaper Marca, which was also running a poll asking readers if the championship is being fixed.
"The FIA leaves Alonso without options," wrote AS, referring to Alonso's chances of fighting for victory at the Italian Grand Prix.
"The decision to relegate Fernando Alonso to tenth place on the grid for 'blocking' Felipe Massa is a real scandal," wrote Barcelona's Sport newspaper, who used the headline "The FIA fixes the championship with another penalty to Alonso."
"Low blow to Alonso," read a headline on La Nueva Espana.
ABC newspaper's website wrote: "They are mocking Alonso."