Sebastian Kehl says Shinji Kagawa would be welcomed back to Borussia Dortmund with open arms.
Borussia Dortmund earned a 3-2 win at Augsburg on Friday night, although they nearly let the points slip in Bavaria.
Borussia Dortmund boss Jurgen Klopp says he is very confident that Marco Reus will stay at the cub for a long time.
Liverpool face holders Real Madrid in the Champions League while Manchester City are again grouped with Bayern Munich.
Bayer Leverkusen claimed a shock 2-0 Bundesliga win at Borussia Dortmund on Saturday, while Hannover beat Schalke.
Karim Bellarabi scored the quickest goal in Bundesliga history as Bayer Leverkusen beat Borussia Dortmund 2-0.
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