Players of Borussia Dortmund run during a training session at the club's headquarter in Dortmund
Chris Loewe, Ivan Perisic, Ilkay Guendogan, coach Juergen Klopp, Shinji Kagawa, Kevin Grosskreutz and coach Juergen Klopp (L-R) of Borussia Dortmund run during a training session at the club's headquarter in Dortmund June 29, 2011. REUTERS/Ina Fassbender (GERMANY - Tags: SPORT SOCCER)