Former Manchester United [ Images ] captain Roy Keane [ Images ] is set to sign for Celtic, according to media reports.

Several British newspapers said Keane's move to the club he supported as a boy was likely to be confirmed later on Thursday.

The 34-year-old Ireland midfielder ended a 12-year spell at Old Trafford when he left United last month.

Keane, who has not played a competitive game since breaking a bone in his foot against Liverpool in September, inspired United to seven league titles after joining from Nottingham Forest in 1993.