Cristiano Ronaldo will not play in upcoming friendlies.
Portugal faces Mexico and the United States later this month.
Ronaldo's absence raises questions about his future with the national team.
Strategic angle: Al Nassr star Cristiano Ronaldo was not included in Portugal's call-up for pre-FIFA World Cup friendlies.
Cristiano Ronaldo will not play in upcoming friendlies.
Portugal faces Mexico and the United States later this month.
Ronaldo's absence raises questions about his future with the national team.