Blackburn boss Sam Allardyce has urged Nathan Ellington to make the most of his opportunity to earn a contract at Ewood Park.
Watford striker Ellington has joined Rovers on trial after being deemed surplus to requirements by the Hornets, who signed him for a club-record fee of £3.25million in August 2007.
The former Wigan frontman was on loan at Derby last season but Rams boss Nigel Clough passed up an opportunity to sign him permanently this summer.
Allardyce told the Lancashire Telegraph: "Nathan Ellington is on trial. You can't have enough strikers at any club as it all adds to competition for places and I like to try and resurrect somebody if they want resurrecting.
"He is a lad who has a huge amount of talent, he has a really good CV in terms of his earlier years with Paul Jewell at Wigan particularly and with Jason Roberts.
"He is only 28, so whatever went wrong, if he can put that right, we would have a real player on our hands. But he has to prove it in the few days he has with us and then we will see."