Osasuna are interested in signing Rodrigo Tello from Sporting Lisbon, according to reports in Portugal.
The Chilean left-back is out of contract at the end of the season and Sporting have not yet offered him a new deal.
Osasuna spies have been tracking Tello throughout the season and the club are believed to be planning a summer move for the South American.
Sport director Juan Jose Lorenzo, however, has insisted Osasuna are looking at a number of options for next term.
"Our club are assessing several players for next season. The list is long," said Lorenzo.