Real Madrid have opened disciplinary proceedings against Robinho and Julio Baptista following their late return from international duty with Brazil last week.
"The board of directors are determined to speed up the enquiry and make their decision on the case as soon as possible," the club said in a statement on their Web site (www.realmadrid.com).
Spanish media reported that the players would be handed a heavy fine as stipulated in the club's code of conduct.
The two players failed to warn the club that they would miss training last Friday ahead of the team's league match against Espanyol after their flight from Brazil was delayed.
They were both left out of the squad for Saturday's match, which Real lost 2-1.
Robinho was one of the Brazil players reported to have been partying into the early hours of Thursday morning following their team's 5-0 victory over Ecuador in a World Cup qualifier in Rio de Janeiro.
15 10 2007
Roberto Soldado has still yet to play a competitive game for Real Madrid this season, despite coach Bernd Schuster's promises that he would be involved in the first team squad.
The 22 year old forward, though, has tried to remain upbeat and, in a recent interview with Marca, declared that Madrid's results remain his top priority.
"It's hard when you're not even entering into the squad list, but you need to keep trying, to be strong, and to respect your colleagues," he began.
"Should I triumph here, then my suffering will be worth it."
Recently, Soldado's agent remarked that, should the situation at the Bernabeu remain as-is, then his client would look to move on, perhaps in January.
For now, though, he remains committed to the Blancos.
"My dream has always been to succeed at Real Madrid and I will try with all my strength to do so," he said.
"It took many twists and turns to convince the club not to sell me [in summer]. I won't leave as long as I have an opportunity to succeed."
Last season, he managed 11 strikes in La Liga while on loan at Osasuna. Pre-season, things looked good for Soldado, who was given the number 9 jersey for a series of non-competitive matches.
Since then, though, the good form of Raul and Ruud van Nistelrooy has kept him out of the starting XI, while Schuster seems to prefer Julio Baptista and Javier Saviola as substitutes.