sentences:  Hennings started his career with local junior side VfL Oldesloe before signing for Hamburger SV in 2001.He progressed through the junior sides to be promoted to the first team in 2005.He featured mainly for the second side in the Regionalliga Nord, making 22 appearances in the 2005–06 season and 29 appearances in the 2006–07 season, before joining 2.