The Commissioner won't be back until Friday. In the interim, I think the general understanding -- and in fact, the rule that was eventually put into place (or, remained in place) was that players under foreign contract aren't eligible to play for our teams this year.
That's why, when wdleehi took Childress, he made it clear that he was a future asset, rather than a current one.
That being said, folks are getting a little too worked up about a 13th rounder.