With the addition of All-Star closer Mark Melancon, who signed a four-year contract worth $62 million earlier this week, the San Francisco Giants needed to clear a spot on the 40-man roster. Rather than designating a player for assignment and losing him for potentially nothing, the Giants swung this deal to get something in return. The player that will eventually be named likely won’t be a big-time prospect or future superstar, but is assuredly better than absolutely nothing.
After an incredible 2015 season, in which Heston burst on to the scene out of nowhere, he looked like he would be a part of the Giants’ rotation for the foreseeable future.