Marcus Semien's elite September validates that his 2019 breakout was no fluke.

Reynaldo Lopez is one of several high-upside young SP that ended the 2019 season with a flourish.

Zac Gallen's strong finish to the 2019 season should put him on many breakout lists heading into 2020.

Keston Hiura's big second half is making him one of the better 2020 breakout targets in the game.

Chris Archer has turned his season around since the All-Star break.

Jurickson Profar's disappointing season finally took a turn for the better in August.

Andrew Heaney's second half surge reached a whole new level in August, putting him on track for a big finish and potential 2020 breakout.

Jose Osuna's surprising production against RH pitchers makes him a bat that can help you down the stretch if you can use him selectively.

Anthony DeSclafani's filthy skills against righty bats confirms that he has more upside than it might seem.

Overlooked guys like Adrian Houser could help propel your roster down the stretch in September.

The August surge and extreme home/road splits of Willy Adames both suggest he could be closer to taking a big step forward than it might seem.