The former Celtic boss has been priced at 4/5 odds by Coral for a return to Parkhead.
The Hoops sit eight points behind league leaders Hearts after their 3-1 defeat at the Edinburgh side on Sunday.
First-half goals from on-loan Stoke striker Nathan Lowe, Kyle Wootton and Jack Diamond were enough for the Hatters to seal all three points.
O'Neill went on to admit, and conclude with Ally McCoist, that Hearts winning the title would 'reinvigorate' the Scottish game, with Aberdeen the last team outside of Glasgow's big two to win the ...
Celtic's major shareholder Dermot Desmond has excoriated Brendan Rodgers in an open letter on the club's website.
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