Career
Grashoff began his career with Werder Bremen, and made his debut for the reserve team in September 2011, as a substitute for Lennart Thy in a 3. Liga match against SpVgg Unterhaching. He signed for Preußen Münster in July 2013.
Grashoff began his career with Werder Bremen, and made his debut for the reserve team in September 2011, as a substitute for Lennart Thy in a 3. Liga match against SpVgg Unterhaching. He signed for Preußen Münster in July 2013.