The keeper is not ruling out any options and, at this stage, staying at Hannover, moving to a Bundesliga rival and returning to the Premier League are all on the table.
Zieler’s agent said: “We have had good discussions, but not in intensive negotiations.
“Of course, Ron can imagine extending his time at 96.
“He became a Bundesliga goalkeeper at Hannover and he feels comfortable there, but it is still too early to decide.”