BREMEN, Germany, Sept 27 (Reuters) - Samuel Eto'o suffered a potentially serious injury to his right knee in Barcelona's 1-1 draw with Werder Bremen in the Champions League on Wednesday.
'Sadly enough it seems Eto'o has an injury to his knee and it could be a meniscus problem,' coach Frank Rijkaard told a news conference.
'We'll have to do some tests and see what the medical staff say.'
Spanish media quoted a Barcelona team doctor as saying Eto'o could be out for between two and three months.
The Cameroon striker was forced off in the 65th minute of the Group A game.
Barcelona, the European champions, fell behind to a Carles Puyol own goal in the 56th minute and needed a Lionel Messi strike in the 89th minute to snatch a point.