Grace was recalled from Triple-A Syracuse on Friday, Jamal Collier of MLB.com reports.
Grace will return for his second stint with the major-league club this season, replacing Shawn Kelley (back) on the active roster. The lefty has recorded 14 strikeouts in 11 innings with Syracuse this season, but he's also allowed six runs on 11 hits (including two homers). Grace figures to work primarily in middle relief.