Sorensen was taken off on a stretcher during Stoke's 7-0 defeat to Chelsea on Sunday after he sustained the injury when attempting to stop Salomon Kalou's second goal.
It was immediately feared that Sorensen's participation in the World Cup finals with Denmark would be in some doubt, but Stoke are much more upbeat about the injury after the 'keeper was able to travel back from London with his team-mates on Sunday night.
"If he had needed an operation," Pulis told the Stoke Sentinel, "he'd have struggled to make the World Cup. But there is some encouraging news in that it was put back without the need for that."
The positive update over Sorensen's condition will be welcome news for Denmark as the Stoke goalkeeper has been a regular for his national side since 2000, and featured at the 2002 World Cup finals.
With 86 caps to his name, he is poised to play a prominent role as Denmark face Netherlands, Japan and Cameroon in South Africa.