Atlanta selected Keirsey's contract Thursday and optioned him to Gwinnett. Keirsey had an opt-out in his minor-league contract, and Atlanta decided to add him to the 40-man roster in order to prevent him from leaving. He's slashed .260/.298/.384 with four home runs and 16 stolen bases in 49 games with Gwinnett this season.
Atlanta reassigned Keirsey to minor-league camp Saturday. The defensive-minded outfielder was unable to secure a bench spot on Atlanta's Opening Day roster and appears set to begin the season at Triple-A Gwinnett. As a member of the Twins organization last season, Keirsey saw action in 74 games at the big-league level and slashed .107/.138/.179 with two home runs and 10 stolen bases over 88 plate appearances.
Keirsey signed a minor-league contract with Atlanta on Dec. 18. Keirsey has found a new home with Atlanta after being non-tendered by the Twins and electing free agency in November. The outfielder appeared in 74 matchups with Minnesota during the 2025 season, struggling to a .107 average with two home runs, six RBI, 10 stolen bases on 13 attempts and 11 runs scored.