FRISCO, Texas -- Ralph Priso scored the tying goal in the third minute of stoppage time and Belal Halbouni scored the decisive goal in a penalty-kick shootout on Saturday night to help the Vancouver Whitecaps beat FC Dallas on Saturday night to sweep the best-of-three first-round series in the MLS Cup playoffs. Vancouver, the No. 2 seed in the Western Conference, will play either third-seeded Los Angeles FC or No. 6 seed Austin in the one-game conference semifinals. After Vancouver's Thomas Müller and Sebastian Berhalter sandwiched goals around another by Dallas' Petar Musa to open the shootout, Patrickson Delgago's shot hit the crossbar. Kenji Cabrera and Shaq Moore traded goals before Halbouni scored before Nolan Norris missed high for Dallas to seal it. Musa scored his first career goal

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