Scottish Premier League side Celtic have signed Sweden international Mikael Lustig on a pre-contract agreement from Rosenborg.
The 24-year-old, who has penned three-and-a-half-year deal at Celtic Park, revealed that he is "delighted" to have joined the club.
"This is a really exciting time for me and I am delighted to be committing my future to Celtic," he 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."
The full-back, who arrive in Scotland in January, came on as a substitute during Sweden's recent 1-0 defeat to England at Wembley Stadium.
