Geltz will have his contract purchased from Triple-A Durham when rosters expand Monday, Steve Carney of 620 WDAE reports. Geltz tossed 41.2 innings out of the bullpen at Triple-A Durham this season, producing a 2.38 ERA and sparkling 60:17 K:BB ratio. He'll have to settle for low-leverage middle relief duty initially, but if his production quickly carries over to the big leagues, he could become one of the top setup men for closer Jake McGee.