Cristiano Ronaldo will not train with his Portugal team-mates on Wednesday due to suffering from a 'stomach bug'.
The 37-year-old missed Manchester United's last two matches against Aston Villa and Fulham due to an unspecified illness.
He has since been seen training with the Portugal squad ahead of the World Cup, but he has been forced to sit out Wednesday's session in Lisbon, according to Sky Sports News.
Ronaldo has hit the headlines in recent days after taking part in a bombshell interview with Piers Morgan, and more revelations are expected when the first part of the interview airs on TalkTV on Wednesday night.