The German failed to have the desired impact during his time at White Hart Lane.
Hamburg are reportedly interested in signing Moussa Sissoko from Newcastle United in the summer transfer window.
The Croatian international will be a free agent in the summer.
The Hungarian international is surplus to requirements at the Bundesliga club.
The Hamburg man is not wanted at the Bundesliga club.
The Magpies are said to be keen on the player as doubts emerge over Papiss Cisse's future.
The Norwegian was named the PFA Scotland Player of the Year.
The Hamburg SV midfielder will not be returning to Amsterdam this summer.
Hamburg SV climbed out of the direct relegation zone on the final day of the season.
The Dutchman was in involved with an unfortunate collision with Mainz's Elkin Soto.