Klopp brought Hummels to Dortmund in 2008 .
Together Dortmund went on to two Bundesliga titles , a German Cup , two German Supercups and reach the 2013 Champions League final .
Klopp brought Hummels to Dortmund in 2008 , and together they went on to two Bundesliga titles , a German Cup , two German Supercups and reach the 2013 Champions League final .