Adnan Januzaj has confirmed he has joined Borussia Dortmund from Manchester United on a season-long loan
Shinji Kagawa set up two goals as Borussia Dortmund beat Hertha Berlin 3-1 to return to the top of the Bundesliga.
Borussia Dortmund moved back to the top of the Bundesliga on Sunday with a 3-1 victory over Hertha Berlin.
Arsenal were handed a tough draw in the Champions League group stages as they were paired with Bayern Munich.
Borussia Dortmund are top of the Bundesliga after a 4-0 win over Ingolstadt, while Borussia Monchengladbach slumped to the bottom.
Liverpool are set to be drawn against difficult opposition, while Tottenham will join top seeds in Friday's Europa League group-stage draw.