That honor would go to Sporting Kansas City. The Open Cup's defending champions crashed out after a 1-0 defeat to USL side Orlando City.
Orlando City just happens to be Sporting's lower league affiliate, meaning the Florida club gets loanees from their MLS partner. This year Sporting sent four players south: Dom Dwyer, Jon Kempin, Yoann Songo'o and Christian Duke, with Dwyer in particular making a name for himself in the third division.
Those players didn't suit up for Orlando last night because of a "gentleman's agreement" between the two clubs.
Not that it mattered, Orlando won anyway.
Chivas USA would get a share of the shame, too, losing to the NASL Carolina RailHawks, but as we've come to realize over the course of this season, that organization is completely shameless.
Joining the Red Bulls, Sporting and Chivas USA is the Philadelphia Union, who lost 3-1 to D.C. United and the Houston Dynamo, who lost to rivals FC Dallas 3-0. There's one more game to contest, the Chicago Fire vs. Columbus Crew, so at least one more MLS team will be eliminated tonight.
Misery loves company, so it's something. Not much of something, but still something, I guess.