Sunderland striker Fraizer Campbell is having a racist tweet received investigated by local police.

Campbell was called a "big f**king n****r" after he joked "Come on Estonia! You can do it!" ahead of the Euro 2012 play-off against Ireland.

The message was sent by TheReid1, whose account no longer exists.

Campbell, 24, and formerly of Manchester United, retweeted the abuse, adding "wow just seen this tweet! Disgraceful".

He also linked a picture of the Show Racism the Red Card organisation's logo.

A Northumbria Police spokesman said: "We are aware of the matter and inquiries are being made into it."