Cameroon captain Samuel Eto'o remains an injury doubt for his team's World Cup encounter with Brazil tonight (Monday).

The 33-year-old missed training on Sunday as he continues to struggle with a knee problem.

Eto'o suffered the injury during Cameroon's opening defeat to Mexico, forcing him to miss last Wednesday's 4-0 hammering by Croatia.

The Africans have no chance of reaching the second round of the tournament after losing their first two matches in Brazil.