Earlier this season, Miami's Henderson Alvarez had to be shutdown due to a right shoulder injury. He hasn't pitched in a major league game since May 22nd, but he's recently been cleared for a rehab assignment.
#Marlins RHP Henderson Alvarez placed on a rehab assignment at Jupiter— clarkspencer (@clarkspencer) July 15, 2015
Alvarez missed all of June, and half of July, which means that he'll likely need at least a few starts before rejoining the big league club.
The Marlins are known to be shopping several of their players, which includes starting pitchers Mat Latos, Dan Haren, and possibly Tom Koehler. If Alvarez can return near the beginning of August, Miami might be more willing to part with their major league talent. Another option to help pick up innings if the Marlins can move two or three of their pitchers, is top prospect Justin Nicolino, who was called up earlier this season.
Miami has declared themselves open for business, but it's still unclear when they might start wheeling and dealing. The trade rumors are fairly quiet 15 days into July, but something has to happen soon.