LONDON, Dec. 30 (Xinhua) -- Scottish Premier League (SPL) Celtic leaders announced Thursday that former Arsenal and West Ham star Freddie Ljungberg has signed for the club.

The 33-year-old Swiss has represented his national team for 75 times. He has spent the last 18 months playing in the United States with Seattle Sounders and Chicago Fire.

He passed a medical on Thursday and could make his debut for the Glasgow giants on Sunday when the club faces Rangers at Ibrox.

"Celtic are delighted to announce the signing of Freddie Ljungberg," said a club statement.

Ljungberg will give a news conference at Celtic's Lennoxtown training center on Friday.