Sunderland boss Steve Bruce has confirmed his interest in signing Sol Campbell on a free transfer.
Campbell, who is out of contract after the conclusion of the short-term deal which took him back to Arsenal in January, has held talks with both the Black Cats and Celtic over his next career move.
Sunderland are on the lookout for experience down the spine of their team after agreeing to sell club captain Lorik Cana to Galatasaray on Thursday.
"I have known Sol Campbell for a lot of years and it was nice to see him," Bruce told the Sunderland Echo.
"We had a catch-up to see what his ideas are and what he is up to.
"It was pretty positive stuff and we will see what happens."
Meanwhile, Bruce has also revealed that a potential move for Schalke and Germany defender Heiko Westermann has not been totally abandoned.
"I've a number of irons in the fire," Bruce continued. "The situation with Westermann was complicated because the boy got injured at the end of last season.
"But there is still interest there. We have made a bid but that hasn't come to anything at the moment."