This is an archived article that was published on sltrib.com in 2013, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

Who will it be?

Where will it be?

Will Real Salt Lake make its 2013 postseason debut next weekend in a roaring CenturyLink Stadium in Seattle or be tasked with slowing down Robbie Keane and Landon Donovan in sunny Southern California?

It could be facing Rocky Mountain rivals Colorado and its dynamic forward tandem in Commerce City, Colo.

"Every team has become a huge rival and is going to be extremely difficult," said defender Chris Wingert.

RSL's Western Conference semifinal matchup will be revealed Sunday night following the final regular-season match between the L.A. Galaxy and Seattle Sounders at CenturyLink.

RSL, the No. 2 seed in the Western Conference with 56 points, will face the No. 3 seed - whoever that may be - in the semis. If either the Galaxy or Sounders win tonight in Seattle, they will clinch the third seed.

If the Galaxy and Sounders draw and the Rapids defeat Vancouver tonight in British Columbia, it will be Colorado who will host RSL on either Nov. 2 or 3 in the first of the two-leg series. The second leg will be played either Nov. 6 or 7 at Rio Tinto Stadium in Sandy.

"We put ourselves in a great position to make a run here," said defender Nat Borchers.

The only team RSL hasn't beaten out of the three possible first-round opponents is the rival Rapids. RSL went 0-1-2 against Colorado this season, losing a grip of the Rocky Mountain Cup for the first time since 2006.

RSL is 1-2-0 against L.A., this season and 2-1-0 against Seattle.

"Literally every team is going to be really tough," Wingert said. "The East has some really good teams too, but man, that's five really tough match-ups. We've put ourselves in a pretty good position - whoever we play is going to be difficult, but at the same time, we hope we're difficult for them."

Twitter: @chriskamrani —

2013 MLS Cup playoffs

Western Conference semifinals:

No. 2 Real Salt Lake vs. No. 3 L.A. Galaxy

First round knockout match:

No. 4 Seattle Sounders vs. No. 5 Colorado Rapids

(Winner faces No. 1 seed Portland Timbers)

Eastern Conference semifinals:

No. 2 Sporting Kansas City vs. No. 3 New England Revolution

First round knockout match:

No. 4 Houston Dynamo vs. No. 5 Montreal Impact

(Winner faces No. 1 seed New York Red Bulls)