After 90 minutes of scoreless play, Real Salt Lake and the LA Galaxy will enter the second leg of their Western Conference semifinal with everything to play for. 

RSL desperately tried to sneak out an advantage at home in the first leg, but LA 'keeper Jaime Penedo was too good in between the pipes at Rio Tinto Stadium. 

Although they didn't score, Jeff Cassar's side did hold the Galaxy to zero goals, which is crucial given the institution of away goals for this season. 

With so much left to play for at StubHub Center Sunday night, we opted to take a look at some of the key issues surrounding the star-studded affair. 

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