Leon Andreasen is set to leave Fulham.
The Sun says Cottagers manager Roy Hodgson signed the midfielder, 25, from Werder Bremen for £2million last January.
Andreasen, who has 12 Danish caps, has played only 18 times for Fulham.
He is believed to want to leave London and Hannover are in pole position.
Christian Hochstaetter, Hannover's technical director, confirmed his club's interest in signing him - for a fee expected to in the region of £2m.