If we all know anything, Major League Soccer has some weird roster rules. While the summer transfer window closed on August 3rd, 2016, it doesn't mean that things are done and dusted. In fact, Sporting KC so rarely pays transfer fees, the odds could still be in favor of a move. Before we get to that, a few things should be noted.
First, SKC did make a deadline day deal, just not one that anyone cares about. They traded the rights to Tony Rocha, who they drafted in the fourth-round of the 2015 MLS SuperDraft in 2015, to Orlando City SC. In exchange they received a fourth-round selection from Orlando in the 2018 MLS SuperDraft. Rocha never played for Sporting KC, which is not surprising. SKC's third and fourth-round picks from 2016 have both already been released without appearing outside of preseason games.
Second, even though I just said Sporting doesn't pay transfer fees, news from earlier today is they tried to pay about 6.2 million dollars to acquire Romain Alessandrini, a winger who plays for Marseille in the French Ligue 1. That's shocking considering Sporting generally do not pay transfer fees. Look back at all the recent signings: Ever Alvarado, Nuno Andre Coelho, Jordi Quintilla (RIP -- I mean, he's not actually dead), Soni Mustivar, Krisztian Nemeth -- not a single transfer fee was paid (I've left out players signing as free agents or traded for within the league, but the same holds true).
So as I said, hope isn't lost and here is how. Yes, the summer transfer window is closed but the MLS Roster Rules have some language worth noting:
(B) TRANSFERS AND LOANSAn MLS player may be transferred or loaned at any time to a non-MLS club (subject to that club’s Federation’s transfer window), and subject to the consent of the player. Upon loaning a player, clubs will receive roster relief and budget space, subject to the terms of the loan.The registration windows – the dates between which MLS may request the transfer certificate of a player under contract in another country – are as follows:Primary Transfer Window - February 18 – May 11, 2016Secondary Transfer Window - July 4 – August 3, 2016