▁January ▁ 2 0 0 5 ▁after ▁moving ▁from ▁Br ent wood ▁when ▁he ▁was ▁sevent een . ▁After ▁a ▁year ▁playing ▁youth ▁and ▁reserve ▁football , ▁D unn ▁was ▁made ▁a ▁squad ▁number ▁as ▁cover ▁for ▁Lee ▁Har per ▁in ▁the ▁ 2 0 0 5 – 0 6 ▁season ▁by ▁then ▁manager ▁Col in ▁Cal der wood . ▁For ▁the ▁following ▁two ▁seasons , ▁D unn ▁was ▁an ▁under stud y ▁to ▁Mark ▁B unn . ▁On ▁ 3 ▁May ▁ 2 0 0 8 , ▁D unn ▁was ▁given ▁the ▁opportunity ▁to ▁make ▁his ▁début ▁in ▁the ▁last ▁game ▁of ▁the ▁ 2 0 0 7 – 0 8 ▁season ▁to ▁gain ▁first - team ▁experience . ▁The ▁game ▁was ▁at ▁home ▁to ▁T ran m ere ▁Ro vers ▁and ▁North am pton ▁Town ▁won ▁ 2 – 1 . ▁ ▁B unn ▁was ▁sold ▁near ▁the ▁end ▁of ▁the ▁ 2 0 0 8 ▁summer ▁transfer ▁window ▁to ▁Black burn ▁Ro vers , ▁which ▁meant ▁D unn ▁was ▁selected ▁as ▁first ▁choice ▁for ▁the ▁forth coming ▁season . ▁After ▁appearing ▁in ▁a ▁hand ful ▁of ▁first ▁team ▁appearances , ▁D unn ▁was ▁at ▁fault ▁for ▁conced ing ▁one ▁of ▁the ▁goals ▁in ▁a ▁ 3 – 2 ▁loss ▁against ▁Hud ders field ▁Town ▁on ▁ 2 0 ▁September ▁ 2 0 0 8 , ▁prompt ing ▁Manager ▁Stuart ▁Gray ▁to ▁defend ▁him ▁to ▁the ▁press . ▁Following ▁this , ▁D unn ▁lost ▁his ▁first ▁choice ▁status ▁to ▁loan ▁Frank