Five things to watch: NY Red Bulls vs. DC United, RSL vs. Seattle Sounders

By Kyle McCarthy
The Houston Dynamo and Los Angeles Galaxy booked their places in the conference finals on Wednesday, while two more teams will join them Thursday night. Here are five points to watch as DC United visits New York (series tied 1-1 on aggregate) and Real Salt Lake hosts Seattle (series tied 0-0 on aggregate):
1. Dealing with Athena’s remnants: Poor weather forced MLS to postpone Wednesday night’s match between DC United and New York. The conditions shouldn’t be an issue on Thursday, but the state of the field could pose significant problems for both teams. The surface at Red Bull Arena does not rank among the best in MLS in ideal circumstances. This scenario certainly does not fall under that heading.
2. Mental and physical hurdles: It isn’t easy to prepare for a match on consecutive days. Keep an eye on potential strains and tweaks as players work their way into the encounter. Also worth noting: United, in particular, wanted to play Wednesday night. Will the lag time diminish that ambition?
