In the past two seasons Dortmund have had in their groups Man City, Real Madrid, Ajax (all their respective leage champions) in 12/13 and Arsenal, Napoli, OM this season and finished top in both groups.
In the past two seasons Dortmund have had in their groups Man City, Real Madrid, Ajax (all their respective leage champions in 12/13 and Arsenal, Napoli, OM this season and finished top in both groups.