Roy Keane has ended weeks of debate over his future by signing an 18-month deal with Celtic.
Keane, 34, left Manchester United in a shock exit last month, after playing for the club for over 12 years.
He said he would find it hard to play for another Premiership side after playing for United for so long, so chose to move north to Scotland.
He's been a Celtic fan since he was a boy, and is thought to be set to make £40,000 a week playing for them.
It was thought that Real Madrid were interested in signing Keane, but once their interest cooled, Celtic made their move.
Keane won't be allowed to play for the SPL leaders until after the winter transfer window opens, so he could debut for Celtic in their match against Clyde at Broadwood Stadium in the second weekend of January.