Enrique Hernandez's growth late in 2018 and overall surge against righties are positioning himself for further gains in 2019.

David Dahl's big September is a reminder of the multi-category potential he carries.

After a slow start to the season, Adam Frazier has flashed his multi-category potential during his big second half, making him one of several middle-infielders with breakout potential heading into 2019.

Mallex Smith's big August came with full support from his underlying skills.

Ketel Marte's surging walk rate, upper-tier wheels and frontline stats against lefties all continue to point to him as a young hitter worthy of your investment.

While his 2018 has been a disappointment, Josh Bell's production on the road suggests you can glean value from him if you use him in doses.

Trevor Story's resurgence in 2018 has been validated by significant gains in his plate discipline.

The upper-tier upside of Gregory Polanco was on full display in July.

Juan Soto's emergence at age 19 has made him one of the most skilled young bats in the game.

Jesse Winker's big surge in plate discipline and recent spike in power skills make him a premium stretch-run target, and give him breakout potential heading into 2019.

Ketel Marte has been one of the most-skilled bats in the game since the beginning of June, giving hope that he could be in store for a big second half, especially with some regression in his hit rate.