Rubiales refused to quit earlier on Friday, fuelling anger among players and government ministers who decried his actions as unacceptable misogynist behaviour.
A total of 56 players, including Hermoso and all of the cup-winning 23-strong side, signed a joint statement sent via their FUTPRO union demanding the removal of the federation leadership. Spanish LaLiga clubs like Espanyol and Sevilla have also issued statements supporting the World Cup winner.
More to follow.