The 49-year-old has managed Sunderland and Ipswich Town and was last in the dugout two years ago at Nottingham Forest, his first English club as a player. Keane has also worked alongside ex-Celts Paul Lambert at Aston Villa and Martin O’Neill for his national side.
Currently working as a television pundit for Sky Sports, he could be tempted back into management at his former club and boyhood favourites where he spent six months to end his playing career.
According to reports in The Sun, replacing Neil Lennon at Parkhead would interest Keane and would be a box-office signing for the Hoops – pitting him against his old midfield foe Steven Gerrard in the Old Firm derby after their playing duels in the Manchester United-Liverpool Premier League rivalry.
The Irishman was previously linked to the role in 2014 when Ronny Deila was appointed and is one of a host of names to be linked to the vacancy following Lennon’s resignation last month. The two-time Celtic boss admitted he was keen to return to management too following his latest stint in the Celtic Park hotseat when speaking on Radio 5 Live earlier this week.
Celtic have also been linked to a move for Manchester City’s football partnerships manager Fergal Harkin for a director of football role.