Cameroon striker Samuel Eto'o has confirmed that he is unlikely to play any part in Wednesday's World Cup Group A match against Croatia due to a knee injury.

The Chelsea forward missed two days of training due to a knee complaint, which has been troubling him since the end of the Premier League season.

As a result, Cameroon's all-time top goalscorer will be unable to help his nation as they bid to pick up their first points of the campaign.

Eto'o wrote on Twitter: "The doctors confirm! I would probably not be able to play the match vs Croatia on Wed June 18th due to an injury on my knee causing me pain."

Cameroon suffered a 1-0 defeat to Mexico in their opening match of the tournament last week.