Sol Campbell has described Celtic as a "serious option" for him this summer after revealing he has held talks with the club's interim manager Neil Lennon.
Campbell has been offered a new one-year contract at Arsenal and told Soccernet last week he would "love the opportunity" to extend his stay with the club, having made a shock return to Emirates Stadium in January.
But the defender, 35, is clearly keen to keep his options open and has spoken in positive terms of the possibility of moving to the SPL with Celtic this summer.
"I've spoken with Neil about moving to Celtic," Campbell told The Scottish Sun, "and I've been impressed with what he had to say.
"Celtic is a serious option for me. We're talking, although we haven't yet discussed figures. Nothing is set in stone. I know Celtic are a massive club. I have to consider them. You can't ignore it when such a fantastic club makes their interest known."
Campbell made ten Premier League starts and two Champions League appearances after rejoining Arsenal on a free transfer in January.
In other Arsenal news, on Tuesday evening, it was confirmed that Fran Merida has left the club in order to join Atletico Madrid.