Eto'o has been the constant target of racist abuse

Racing Santander have been fined by the Spanish Football Federation (RFEF) after a group of fans subjected Barcelona striker Samuel Eto'o to racist abuse on Sunday.

The RFEF did not reveal the size of the fine, but under current disciplinary rules it it expected to be around $3,000.

"I can't confirm the sum but article 125 [of the Spanish federation's statutes] rated the incident as serious," said an RFEF spokesman.

Under the application of that article, the maximum fine would normally be $3,300.

Referee Antonio Rubinos Perez mentioned the abuse in his report on the match at El Sardinero, saying that the Cameroon international had been met with monkey chanting when he touched the ball.

He then asked the club to make an announcement over the public address system calling for the fans to show respect towards the players.

Eto'o, who scored Barcelona's second goal in the 2-2 draw, was subjected to further abuse as the game continued.

The Barca striker tried to leave the pitch after being racially abused by Real Zaragoza fans in February .