The news of the possible move is coming from AS.com and, the article is written in Spanish.
Story says that he is coming back to Estudiantes from a loan to Arsenal de Sarandi and that Sarulyte does not feel he will be in the manager's plans for the next season. He says in the story that he expects to leave Estudiantes and that he has several options. The article goes on to point out that the Houston defense gave up a number of goals in 2015 and could use the help.
Matt Jordan has said our signing will come from either South America or Europe. Jordan's contacts in South America seem to be heavily Argentinian so I think this may be a real story.
Let's just hope this guy isn't a red card machine. Having watched some of the Argentine league over the years I can tell you there are a lot of red cards in that league.
MLS.com has also reported on the possible move.