Injured Zoua out of Cameroon squad
The 18-year-old FC Basel striker suffered the injury last weekend when his Swiss club beat Young Boys Berne 2-0 in their last game of the season.
Zoua was one of nine uncapped players called up for Cameroon's pre-World Cup training camp in the Austrian Alps, which gets underway on Friday.
The striker made his Swiss league debut last November and also played for Cameroon's under-20 side at the World Youth Championships in Egypt last year.
At the June 11-July 11 finals in South Africa, Cameroon will play in Group E along with Denmark, Japan and the Netherlands.