Celtic have confirmed that they have reached a pre-contract agreement with Sweden international Mikael Lustig.
The defender, who is currently on the books of Rosenborg, will officially join the Scottish Premier League giants on 1st January, 2012.
He will pen a three-year deal upon his arrival at Parkhead and claims he is looking forward to the challenge that awaits him in Glasgow.
"This is a really exciting time for me and I am delighted to be committing my future to Celtic," Lustig told the club's official website.
"I know a lot about Celtic, about the size of the club, the world-famous supporters and about the quality squad of players which is already there.
"I'm really looking forward to joining this squad, to the challenges ahead and hopefully playing my part in bringing some success to the club."
Bhoys boss Neil Lennon has been tracking Lustig for some time and is delighted to have finally put a deal in place for the 24-year-old full-back.
He said: "We are delighted to bring Mikael to Celtic. We believe he has the qualities to make a real impact at the club and we look forward to him joining us in January.
"He is a player with international pedigree and a defender with great versatility. He is someone who I feel will be a very positive addition to the squad.
"I like his attributes and he can play both positions (right-back and centre-half), but he's predominantly a right-back."