Vancouver Whitecaps, Seattle Sounders open West semis with scoreless draw. VANCOUVER, British Columbia (AP) — The Vancouver Whitecaps and Seattle Sounders combined for just one shot on target in a scoreless draw to open their Western Conference semifinal on Sunday night. Vancouver, which missed the MLS playoffs by eight points last season, and Seattle, winners of the 2016 MLS Cup, kept things tight to the vest with neither team willing to take many risks. The second leg of the two-game aggregate series is Thursday at Seattle.