In Keller, the Pirates get a reliever who will turn 28 years old later this month. Still, he has some untapped big-league upside so this is a good move for the rebuilding Bucs.

The Angels recently designated Keller for assignment, so they were at least able to get some cash back for his services. He was a bit of a disappointment in Los Angeles.

For now, Keller can remain on the waiver wire/free agency in virtually all fantasy formats. However, he has a chance to factor into Pittsburgh's bullpen plans at some point.