We know that the Houston Astros love Francis Martes because they plucked him out of the lower levels of the Marlins farm system during the Jarred Cosart trade. Astros GM Jeff Luhnow has done an excellent job identifying players in other systems before they breakout, Martes, and David Paulino are two notable players acquired in this way. Now that Martes is a year or less away from making his MLB debut, other teams are doing their homework on him as well.
Now that the Astros are back into the playoff hunt in 2016 after a terrible start, they are most likely looking to be buyers as the MLB non-waivers trade deadline approaches.