The MLS playoffs begin on Wednesday, with FC Dallas hosting the Vancouver Whitecaps in the Western Conference knockout round. The winner will face the Seattle Sounders in the conference semifinals.

Dallas and Vancouver split the season series. Each team earned a win, a draw and a loss in three matches. However, the Hoops have won all five games at Toyota Stadium against Vancouver since they entered the league.

That makes this matchup all the more intriguing. Here are the main storylines and keys to the game.

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