President of Baseball Operations Dave Dombrowski did not reveal how Holt suffered the injury.
Holt, 30, who hit seven home runs with a .774 OPS in 109 games last season, is off to a slow start in 2019, with only one hit in 16 at-bats, and seven strikeouts. He had started four games at second and one game at shortstop.
MORE: Watch ‘ChangeUp,’ a new MLB live whiparound show on DAZN
The team also announced that reliever Brian Johnson has been placed on the IL with left elbow inflammation. After two scoreless one-inning outings to start the season, Johnson has given up 10 hits and eight earned runs in 3 2/3 innings across his last two appearances.
In corresponding moves, Boston recalled infielder/outfielder Tzu-Wei Lin and right-hander Marcus Walden from their Triple-A affiliate in Pawtucket.
