After the Champions League victory against Slavia Praha, Dortmund re-twitter Reus's post to thank Barcelona's help in their progression.
Marco Reus posted "Vamos Barca' on Jan 26, 2012 to give support on Barcelona when they played against Real Madrid in the Copa del Rey.
And Dortmund official account re-twitter Reus' expression to celebrate their progression to last 16 and thank Barcelona for their victory over Inter which helped the German club seal the knockout stage spot.
Dortmund also post "Fair play to Barcelona, Inter and Slavia for a memorable six matches!" to conclude their group stage matches.