Complex sentence: On December 11,2011 the first match with the team as Stade Brestois NY took place, and the team engineered a come-from-behind victory in the annual Celtic Cup.
Split into simpler sentences: On December 11,2011 took place the first match with a team labeled "Stade Brestois NY". In its first official match, Stade Brestois NY engineered a come from behind victory in the annual Celtic Cup.