Feature: Dortmund in top mood despite uncertain future of star players

BERLIN, Jan. 9 (Xinhua) -- The mountain of challenges ahead doesn't seem to bother struggling Borussia Dortmund.

Enjoying the pleasant atmosphere in Southern Spain, the Black and Yellows in their winter break training camp in Marbella couldn't be in a better mood as future troubles seem temporarily excluded.

The team's uncertain future somehow seems masked by the return of Sebastien Haller (testicular can