Hull City are in talks to re-sign their former striker Fraizer Campbell from Crystal Palace on a free transfer.
The 29-year-old is undergoing a medical ahead of linking up with Leonid Slutsky's squad in Portugal on Tuesday night as they face Bristol Rovers in a friendly.
Campbell scored 15 goals in 34 games during a productive spell on loan with the Tigers in 2007-08, which ended with them being promoted to the Premier League for the first time.
The then-Manchester United striker then went on loan to Tottenham Hotspur, before being sold to Sunderland for £3.