Celtic manager Ronny Deila has told Sky Sports that he is interested in signing Hearts defender Danny Wilson this summer.
The Bhoys could lose their two starting centre backs this summer, with Virgil van Dijk attracting interest from the Premier League, and youngster Jason Denayer set to return to Manchester City at the end of his loan spell.
Two - or possibly even more - centre backs could be on Deila's shopping list, and speculation from the Daily Mail on Tuesday night suggested that Celtic were looking to snap up Hearts defender Danny Wilson.
The current Hearts skipper came through the ranks with Celtic's bitter rivals Rangers, before making a move to Liverpool in 2010.
Having struggled to breakthrough at Anfield, Wilson returned to Scotland with Hearts, initially on loan before completing a permanent deal in 2013.
Wilson has now captained Hearts to promotion this season, winning the Scottish Championship at a canter - and the 23-year-old was a key part of that side.
Amid the speculation over a cut-price, £400,000 move to Celtic, manager Deila told Sky Sports that Wilson was a player he was interested in.
"That is one of many names we are talking about but there is nothing serious in that," said Deila. "But he's a good player."
Wilson's contract at Tynecastle expires in a year's time, and Celtic could be sensing a bargain as the summer transfer window approaches.