 Kọ itẹsiwaju fun paragirafi yii - Lẹyìn iṣẹ ọmọdé tó tayọtayọ pẹlú Peterborough Petes àti dídi aṣojú Canada ní 1980 World Junior Ice Hockey Championships : , Murphy ni a ṣe akojọpọ 4th ni 1980 NHL Entry Draft nipasẹ awọn Los Angeles Kings. Ni akoko NHL 198081, o ṣeto awọn igbasilẹ National Hockey League fun ọpọlọpọ awọn iranlọwọ ati awọn aaye nipasẹ olutọju rookie, pẹlu 60 ati 76 lẹsẹsẹ. O ni won gbe e lo si Washington Capitals fun agbaboolu Brian Engblom ati oniroyin Ken Houston ni ibẹrẹ akoko 1983-84, eyi ti ko ṣiṣẹ ni awọn ọbarere gun-igba nitori Murphys gun aseyori ninu awọn Ajumọṣe. 