Heston, 29, only ended up making one appearance for Minnesota after being claimed off waivers from the Dodgers and opening the year with the Mariners. He has thrown just 11 total MLB frames since the start of 2016.
Before that, though, Heston turned in an interesting 2015 campaign with the Giants. Over 31 starts and 177 2/3 innings, he carried a 3.95 ERA with 7.1 K/9 and 3.2 BB/9. (You may also recall that he recorded one of baseball’s more surprising no-hitters that year.)