▁improved ▁over ▁the ▁following ▁seasons , ▁cul min ating ▁in ▁ 2 0 1 1 – 1 2 ▁when ▁he ▁was ▁named ▁the ▁N LA ' s ▁go alt ender ▁of ▁the ▁year ▁after ▁posting ▁a ▁ 2 3 – 2 6 ▁record ▁with ▁B iel ▁and ▁a ▁ 2 . 4 5 ▁G AA . ▁As ▁he ▁played ▁with ▁B iel ▁in ▁the ▁ 2 0 1 2 – 1 3 ▁N LA ▁season , ▁Ber ra ' s ▁N HL ▁playing ▁rights ▁were ▁trad ed ▁by ▁the ▁Blues ▁on ▁ 1 ▁April ▁ 2 0 1 3 . ▁ ▁The ▁Cal g ary ▁Fl ames ▁acquired ▁his ▁rights , ▁along ▁with ▁Mark ▁C und ari ▁and ▁a ▁first ▁round ▁draft ▁selection , ▁in ▁exchange ▁for ▁def enc eman ▁Jay ▁B ouw me ester . ▁ ▁After ▁comple ting ▁his ▁fourth ▁season ▁with ▁B iel , ▁Ber ra ▁believed ▁his ▁career ▁had ▁progress ed ▁to ▁the ▁point ▁where ▁he ▁could ▁succeed ▁in ▁North ▁America . ▁He ▁signed ▁a ▁one - year ▁contract ▁with ▁Cal g ary ▁for ▁the ▁ 2 0 1 3 – 1 4 ▁N HL ▁season . ▁The ▁Fl ames ▁wanted ▁Ber ra ▁to ▁gain ▁playing ▁experience ▁in ▁North ▁America ▁and ▁assigned ▁him ▁to ▁their ▁American ▁Hockey ▁League ▁( A HL ) ▁affili ate , ▁the ▁Abb ots ford ▁He at ▁to ▁start ▁the ▁season . ▁After ▁nine ▁appearances ▁with ▁the ▁He at ▁in ▁which ▁he ▁recorded ▁a ▁ 2 . 6 6 ▁G AA ▁and ▁a ▁. 9