After a successful spell in Scottish football since joining the Bhoys on a six-month loan, Keane has been widely tipped to remain at Parkhead - especially with competition increasing for a place in the Spurs first-team.

However, with Celtic manager Tony Mowbray having now left the club, Keane is being linked with a move back to England - and could become Wolves' marquee signing when the transfer window reopens.

It is thought the Molineux outfit are eager to tie up a season-long loan for the Spurs hitman, who has scored 14 goals in 16 appearances for Celtic, although the London club would be more likely to accept a cash sum - believed to be around £8million.

Keane began his career as a trainee at Wolves before joining Coventry for £600,000 in 1999.

He then enjoyed spells at Inter Milan and Leeds United before signing for his first spell at Spurs.