Mainz have snapped up Czech playmaker Jan Simak from Bundesliga rivals Stuttgart.
Bundesliga outfit Stuttgart are close to signing a replacement for Switzerland full-back Ludovic Magnin, who is to join FC Zurich.
Hannover are considering a move to bring Stuttgart midfielder Jan Simak back to the club.
Stuttgart, Rosenborg and IF Elfsborg booked their places in the second qualifying round of the Uefa Cup.
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