Complex sentence: On 25 January 2013, Błaszczykowski scored two goals within the first 21 minutes against FC Nurnberg, sending Dortmund on their way to a 3-0 victory and putting the defending champions within just nine points of league leaders Bayern.
Split into simpler sentences: On 25 January 2013, Błaszczykowski scored two goals within the first 21 minutes against 1. FC Nuremberg, sending Dortmund on their way to a 3--0 victory and putting the defending champions within just nine points of league leaders Bayern.