Celtic are on the look out for a new manager, with Paul Lambert tipped to be one of the favourites to take over.
Hartson is still fondly remembered at Parkhead, and he keeps a keen eye on the club’s fortunes.
Although the former Bhoys striker is now a very successful pundit, he has hinted that a return to Celtic would not be out of the question - if Paul Lambert is given the manager’s job.
“You never know, stranger things have happened,” Hartson said, when asked whether he’d return to Celtic if Lambert got the job.
“Celtic’s is a club very close to my heart, and I’d rather just say that for now.”
Lambert has been touted as a potential addition for Celtic, following the announcement that he will leave Blackburn Rovers at the end of the season.
Celtic are on the hunt for a new manager, after Ronny Deila confirmed that he wouldn’t be offered a new deal when his current deal expires in the summer.
Lambert represented Celtic for eight years during his playing days, and he and Hartson were teammates during that time.
Lambert’s managerial career has seen him take charge of the likes of Norwich City, Aston Villa and Colchester United so far.