RSL will put its unbeaten record on the line when it travels to face the first-place Sounders at CenturyLink Field.
RSL (6-0-6) will face the first-place Seattle Sounders (8-3-2) on Saturday at CenturyLink Field (4 p.m. ET, MLS Live) in a clash of the top two teams in the Western Conference.
Both clubs will be shorthanded because of USA call-ups for the World Cup, with Seattle missing right back DeAndre Yedlin and forward Clint Dempsey and RSL without goalkeeper Nick Rimando and midfielder Kyle Beckerman. Salt Lake is also missing striker Alvaro Saborio (Costa Rica).
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For Seattle, center back Djimi Traore (groin) and midfielder Lamar Neagle (knee) are question marks. RSL won't have forward Joao Plata available because of a hamstring injury, while midfielders Luis Gil (hamstring) and Cole Grossman (shin) are questionable.
It's the first meeting of 2014 between the traditional Western powers after RSL went 2-1-0 against the Sounders last year.