Complex sentence: Continued financial problems forced "Freiburger FC" to sell its Mösle-Stadion (capacity 25,000) and enter into a sharing arrangement with "Blau-Weiß Wiehre": their former stadium was taken up by "SC Freiburg" as a youth facility.
Split into simpler sentences: Continued financial problems forced "Freiburger FC" to sell its stadium (capacity 25,000) and enter into a sharing arrangement with "Blau-Weiß Wiehre". The old Mösle-Stadion was taken up by "SC Freiburg" as a youth facility.