Atlanta designated Rosario for assignment Thursday.
Rosario's reunion with Atlanta made sense on paper, but the results simply weren't there, with the veteran outfielder slashing just .154/.181/.282 with a 23:3 K:BB over 24 contests. The 32-year-old will pass through waivers and eventually be released, at which point he will seek a job in a new organization. For now, Adam Duvall will see more action in left field with Rosario out of the mix. However, center fielder Michael Harris (hamstring) is due back from the injured list soon, at which point Jarred Kelenic will return to left field.