The 27 - year - old former Hannover 96 shotstopper explains he wanted the challenge that joining the Premier League outfit would bring .
The 27 - year - old former Hannover 96 shotstopper spent part of his youth learning his trade at Manchester United .
The 27 - year - old former Hannover 96 shotstopper , who spent part of his youth learning his trade at Manchester United , explains he wanted the challenge that joining the Premier League outfit would bring .