Sporting Lisbon striker Liedson is attracting Premiership interest.
The Brazilian is up for sale and could be tempted to England, where Aston Villa and Chelsea have been mentioned as potential suitors.
"The player is on the market," agent Gilmar Veloz told the Portuguese press. "People are saying Spartak Moscow is an option, but I can tell you other clubs are interested in him, including in England and Spain."