England under-21 international striker Fraizer Campbell completed a move from Manchester United to Sunderland for an initial fee of £3.5 million ($5.67 million) yesterday.
A statement on Premier League club Sunderland's website (www.safc.com) said that the fee for the 21-year-old could potentially rise to £6 million ($9.72 million).
Campbell, who spent last season on loan at Tottenham Hotspur after playing for Hull City on loan during 2007-08, has signed a four-year deal with Steve Bruce's side.