This article doesn't specifically say an MLS team but I thought it would get the most attention here. Any guesses who it is? http://news.bbc.co.uk/sport1/hi/football/teams/b/burnley/7434566.stm I'd say it could be a USL side.
Given that it's not the USMNT (which, for some odd reason, I really feared when opening this thread), I suppose we have to ask the question of why we care in this forum?