The 36-year-old Swedish icon retired from the national team after Euro 2016 but speculation lingered in the run-up to the squad announcement last month that the former Juventus, AC Milan, Barcelona and Manchester United striker could make an international comeback.
"Zlatan has been the best player for Sweden for many years, but after the European Championships he said that he would finish with the international team, we respected his answer," said Granqvist in Gelendzhik after the team's first training session.
"We must focus on us, we are here now, the squad that has been selected is the one that will play," the 33-year-old Krasnodar defender told AFP.
"Friendlies are very different from competitive games like against Italy, we feel confident about the World Cup," he said.
Apart from a minor concern over a John Guidetti wrist sprain, the Swedish camp reported no injury worries.
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