German champions Bayern Munich have announced the signing of Monchengladbach midfielder Alexander Baumjohann until 2012.

The 22-year-old, who leaves Monchengladbach after a two season spell, described the move as "an immense opportunity".

"I know what I can do and I believe in myself. I think I'm capable of succeeding at Munich otherwise I wouldn't have accepted this offer," he told Kicker.

Bayern are lying fourth in the Bundesliga after Friday's defeat to Hamburg.