Geltz was sent back to Triple-A Durham following Sunday's game against the Astros, Steve Carney of 620 WDAE reports.

EDGE Analysis

The move opens up room on the 25-man roster for the anticipated return of Alex Cobb (elbow) from the disabled list Monday. The 28-year-old reliever allowed a run on three hits in Sunday's contest, but should still be a candidate to rejoin the club when rosters expand in September.