Jackson, 23, has a career .288 batting average with 63 stolen bases, eight home runs and 73 RBIs along with a .363 on-base percentage in 183 games in two professional seasons after being drafted in the fifth round out of Stanford in 2015. He was the 12th-best prospect in Seattle's system, according to MLBPipeline.com.
Zabala, 20, has a 4-13 record with a 4.49 ERA and has recorded four saves in 44 career games (12 starts) over three Minor League seasons. He was ranked No. 22 in the Seattle system by MLBPipeline.com.
Ken Gurnick has covered the Dodgers since 1989, and for MLB.com since 2001. This story was not subject to the approval of Major League Baseball or its clubs.