The Canucks depth could be severely tested in the Western Conference finals with the status of key defensemen Christian Ehrhoff and Aaron Rome in doubt heading into Sunday’s Game 4 against the Sharks, according to an Associated Press report. The Canucks lead the series 2-1 but are coming off a 4-3 loss in Game 3 that could prove costlier than just one game if Ehrhoff and Rome are forced to miss time.