Barcelona star Lionel Messi will undergo tests at the Catalan club on Thursday after he was forced to pull out of Argentina's friendly against Russia through injury.
Messi felt a twinge in his right leg after training on Tuesday and was examined by doctors who found he had pulled a muscle.
"As Argentina coach Diego Maradona announced, Lionel Messi will not play in the match against Russia because of a pulled muscle,'' read a statement on the club's website.
"The Barca first team doctors have been in touch with the Argentinian medical staff to discuss the injury.
"We await the arrival of the player on Thursday morning, when further tests will be carried out to discover the seriousness of the injury.''
Messi is likely to miss both legs of the Supercopa de Espana against Athletic Bilbao but should be fit for Argentina's World Cup qualifier at home to Brazil on September 5.