Former Manchester United captain Roy Keane will make his debut for Celtic in the third round of the Scottish Cup against Clyde on Sunday.
"He will definitely play a part, that's for sure," manager Gordan Strachan confirmed this afternoon.
The 34-year-old Corkman joined the Scottish league leaders in December after 12 years at Old Trafford.
Defender Bobo Balde is away on international duty with Guinea in the African Nations Cup, while striker Chris Sutton has joined Birmingham City.