Answer
Rosenborg BK, a Norwegian football club, acquired Anthony Annan in 2008. Annan, a Ghanaian midfielder, joined Rosenborg from IK Start, another Norwegian club. During his time with Rosenborg, Annan made significant contributions to the team's success, helping them win the Norwegian Tippeligaen championship in 2009 and 2010. He also played a key role in Rosenborg's UEFA Champions League and UEFA Europa League campaigns.