8 ▁when ▁he ▁was ▁domin ated ▁by ▁Donald ▁Cur ry . ▁Ros i ▁was ▁down ▁once ▁in ▁ 2 nd , ▁ 4 th ▁and ▁ 8 th ▁and ▁down ▁twice ▁in ▁ 7 th , ▁failing ▁to ▁answer ▁the ▁bell ▁starting ▁the ▁ 1 0 th ▁round . ▁▁ ▁In ▁ 1 9 8 9 ▁he ▁won ▁the ▁IB F ▁light - middle weight ▁title ▁by ▁out point ing ▁the ▁und efe ated ▁D arr in ▁Van ▁Horn . ▁He ▁went ▁on ▁to ▁successfully ▁defend ▁the ▁title ▁an ▁impress ive ▁ 1 1 ▁times . ▁In ▁ 1 9 9 4 ▁he ▁had ▁a ▁technical ▁draw ▁against ▁Vincent ▁P ett way , ▁and ▁in ▁the ▁rem atch ▁later ▁that ▁year ▁P ett way ▁K O ' d ▁Ros i , ▁ending ▁his ▁long ▁reign . ▁▁ ▁In ▁ 1 9 9 5 ▁he ▁took ▁on ▁W BO ▁light - middle weight ▁title ▁holder ▁Vern o ▁Phill ips ▁and ▁won ▁a ▁decision , ▁but ▁Ros i ▁failed ▁a ▁drug ▁test ▁and ▁Phill ips ▁was ▁re inst ated ▁as ▁champion . ▁The ▁result ▁of ▁the ▁bout ▁was ▁changed ▁to ▁a ▁No ▁Cont est . ▁In ▁ 1 9 9 7 ▁he ▁lost ▁a ▁rem atch ▁to ▁Phill ips ▁and ▁retired . ▁▁ ▁In ▁ 2 0 0 3 ▁he ▁came ▁out ▁of ▁ret irement , ▁and ▁finally ▁retired ▁in ▁ 2 0 0 6 ▁at ▁the ▁age ▁of ▁ 4 9 ▁with ▁a ▁pro ▁record ▁of ▁ 6 2 ▁wins ▁( 1 8 ▁K