Celtic were busy on deadline day as they made three signings.
Junior Adamu was the first of those to join after agreeing a loan with an option to buy from Freiburg.
He has chosen to wear the iconic number nine shirt and will be available for the game against Aberdeen on Wednesday.
Adamu will also compete with Tomas Cvancara for a starting spot after Celtic allowed Johnny Kenny to join Bolton Wanderers on loan.
The rest of the season will be a chance for the 24-year-old to turn his loan into a permanent one, with a modest fee on the table.
Should Celtic hand a debut to their new forward?
How much Celtic will have to pay to sign Junior Adamu permanently
Details of the forward’s transfer have been revealed with Anthony Joseph reporting that they will pay a loan fee of £432,000.
If that move becomes permanent, Celtic will pay £4.3m to sign the Austrian international on a long-term contract.
Martin O’Neill is excited to see Adamu in action and will be competing with Cvancara for that starting spot.

Junior Adamu has similarities to Daizen Maeda
At first glance, the new recruit’s goal record in the Bundesliga isn’t the most impressive, but there is much more to his game than that.
He is like Daizen Maeda in that he likes to press from the front and force the opposition defence into rushing and making a mistake.
“At Freiburg, I’m not just judged on goals because it’s true that I also do a lot of work defensively,” he said.
“But I admit that recently the goals have been lacking for me.
“And my aim is to score goals and provide assists and help support the team.That’s my position, after all.”
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