In Underwood Jr., the Pirates land a 26-year-old right-hander with some untapped upside. He will likely compete for a job in Pittsburgh's bullpen this season, but he also has a history of starting in the minor leagues. So, he gives them options going forward.

The Cubs recently designated Underwood Jr. for assignment, so they did well to land a prospect in return. Apostel is a mammoth power hitter with plenty of potential, although he is extremely raw. This is a solid deal for the Cubbies.

For now, there is no fantasy impact here. However, both Underwood Jr. and Apostel should be on the keeper radar. Underwood Jr. has a chance to become an important pitcher for the rebuilding Bucs, while Apostel has monster power potential.