Career
In May 2014, he was released by the club He consequently joined Segunda Liga team Porto B.
In May 2014, he was released by the club He consequently joined Segunda Liga team Porto B.
Born in Berlin, Siemann started his youth career with Hertha Bachelor of Science, where he was described by youth manager Frank Vogel as ‘He is dynamic, strong and good in one-on-ones.’ In March 2011, he joined Arsenal academy for £220,000 after passing an one week trial with the club