Ramon Calderon resigned as president of Spanish champion Real Madrid Friday after an emergency board meeting at the Bernabeu, Reuters reports, quoting Spanish media.

It said that Calderon, in office since 2006, had been under pressure to quit since the newspaper Marca published allegations earlier this week of irregularities at the club's general assembly last month. Vicente Boluda, one of the club's vice presidents, is expected to take the helm until new elections can be called.

Marca reported that unauthorized persons had gained access to the Dec. 7 assembly, and that their presence helped swing votes on key issues in favor of the management. On Wednesday, Calderon said two club officials involved in organizing the assembly had resigned, and that he would probably not stand for reelection when his four-year term ended in 2010.

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