To make room on the 40-man roster, the Braves designated right-hander Enyel De Los Santos for assignment.
The 34-year-old Kinley has spent the past six seasons in Colorado, where he had a spectacular 2022 season in which he went 1-1 with a 0.75 ERA in 25 appearances. But the right-hander has struggled much of the past three years, and Kinley is just 1-3 with a 5.66 ERA with three saves in 49 appearances this season.
Kinley is in the last year of a $6.25 million, three-year deal that includes a club option for next season.
The 26-year-old Smith is 0-1 with a 2.38 ERA this season at Class-A Rome in the Braves’ farm system.
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Thursday’s MLB trade deadline is fast approaching. With contending teams ready to bolster their rosters for the post-season push, you can stay up to date with every trade made before the deadline with Sportsnet’s trade tracker.