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.

The outfielder was unable to secure a bench spot on the Opening Day roster and appears set to begin the season at Triple-A Gwinnett. With the Twins last season, Keirsey saw action in 74 games and slashed .107/.138/.179 with two home runs and 10 stolen bases over 88 plate appearances.