It appears that Chris Duffy has decided that his future no longer lies with the Pittsburgh Pirates. But...of course...we already knew that.
From the article, it is clear that Duffy flat out left his Mexican winter league team and that there was no illness involved. This makes at least the 3rd time that Duffy has left a team for very little reason in the last few years.
The article states that several others declared minor league free agency, including Franquelis Osoria, Melvin Dorta, Luis Ordaz, Luis Cruz, Matt Kata, Miguel Perez and Carlos Maldonado. Cruz is on the 40 man roster, so unless he has been silently removed, that's not right.
Duffy either he will be out of baseball in a year, or some other team will get burned by his lack of commitment.