EDMONTON, Alberta (AP) — Elias Petterson scored the go-ahead goal early in the third period, Thatcher Demko made 42 saves in his first NHL playoff start and the Vancouver Canucks staved off elimination by beating the Golden Knights 2-1 in Game 5 of their second-round series. Western Conference top-seeded Vegas outshot Vancouver 43-17 and only cracked Demko once, on a highlight reel goal by defenseman Shea Theodore in the second. Brock Boeser also scored for the Canucks and got the primary assist on Pettersson’s goal by taking the shot the 21-year-old Swede deflected past Robin Lehner. Because of Demko’s dominant performance in net and timely scoring, there will be a Game 6 on Thursday.