Celtic manager Gordon Strachan is interested in signing Real Madrid midfielder Thomas Gravesen if they can reach an agreement on wages.
"We would have to have a look at it. There would have to be some homework done on wages, but we would like to try and keep him within the structure that we have got here just now," Strachan told reporters on Friday.
"But I think it's unfair to speak about anybody who is not here, it is unfair on the team, the player and our fans, to speak about something that might not possibly happen."
Denmark international Gravesen, who joined Real from Everton last year, has been deemed surplus to requirements in Madrid after struggling to adapt to the less physical approached favoured in La Liga.
The Scottish champions are battling to keep hold of Bulgaria captain Stilian Petrov who has tabled a transfer request and has been linked with a move to Aston Villa, now managed by former Celtic coach Martin O'Neill.
Strachan said: "Yesterday I had a conversation with Martin O'Neill about 'Stan' and things have not changed one iota... it's still the same."
"Stan Petrov is still here and hopefully will be playing for a long time here and continue to score goals here as he has done in the last couple of weeks."
Celtic are away at Inverness Caledonian Thistle on Sunday with Strachan banned from the dugout, serving a two-match touchline ban for misconduct during the 2-1 defeat by Hearts on Aug. 6.