An interesting bit of transfer business was conducted just before the window slammed shut.
Celtic midfielder Youssouf Mulumbu joined Kilmarnock on loan for the rest of the season.

The move sees the player return to the club he played for last season.
It is a move that suits all parties.
Mulumbu was struggling to get into the Celtic squad, indeed he has made only three appearances so far this season.

MORE CELTIC STORIES
The excellent form of the likes of Ryan Christie and Callum McGregor has meant that he has never broken through into the first-team.
The player now gets a chance to show what he can do in an environment that suits him.

It also gets a player off the Celtic wage bill, even if it is only for six months.
In retrospect, Mulumbu signing for Celtic in August was a bit of a strange one.
The player had been available all throughout the summer on a free transfer, but the Hoops didn’t make a move until the dying hours of the transfer window.
It looked a bit of a panic buy, with the player only signing to make up the numbers.
As it turned out, the move hasn’t really worked for any of the parties involved.
Mulumbu now has a chance to resurrect his career, and it would be a bit of a shock if he ever played for Celtic again.