The 23-year-old Denmark midfielder has been linked with a string of European clubs.
Ronaldo is set to play at his sixth Euros, 20 years on from making his debut at the tournament
The 26-year-old forward has scored just eight goals in all competitions for Manchester United this season.
League Two club faces ‘catastrophic outcome’, say directors, who added that funding assurances given by the Bond Group ‘come across as meaningless’