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POLL: Which lower-seeded team will pull off the biggest upset?

The brackets are set. The 2010 MLS Cup Playoffs will get underway this week — and as RSL proved last year, once you're in it, you can win it — no matter where you're seeded. The reigining champions entered last year's postseason as the lowest-seeded team, but the Claret-and-Cobalt rode their underdog status all the way to hoisting the trophy.

What about this year? All four of the lower-seeded teams are looking very strong going into the playoffs. Colorado gave RSL a scare on Saturday, FC Dallas went on a torrid unbeaten streak, Seattle have proven near-unbeatable down the stretch and San Jose boast this year's Golden Boot winner. But which team will pull off the biggest upset in their conference semifinal series? Let us know!

Full bracket:

Eastern Conference

New York Red Bulls (1E) vs. San Jose Earthquakes (6W)

Columbus Crew (2E) vs. Colorado Rapids (5W)

Western Conference

LA Galaxy (1W) vs. Seattle Sounders (4W)

Real Salt Lake vs. (2W) FC Dallas (3W)

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