HOUSTON -- The Astros activated third baseman Geoff Blum off the disabled list following Houston's 8-1 win over the Detroit Tigers on Saturday, optioning Edwin Maysonet back to Triple-A Round Rock.
Blum has been on the disabled list since June 13 with a left hamstring strain. The Astros' third baseman played in rehab games at Triple-A Round Rock on Thursday and Friday, going 1-for-7 with a double and an RBI.
Blum is hitting .270 with one homer and 18 RBIs in 49 games for Houston this year.
Maysonet was called up from Round Rock on May 22, and after second baseman Kazuo Matsui strained his left hamstring, he found himself in the Astros' lineup consistently. He hit .315 in 54 at-bats and had started catching bullpen sessions, becoming the team's emergency third catcher.
"He's done exactly what we've needed him to do," manager Cecil Cooper said on Friday. "He hasn't not played well. It's just that the role has been diminished, because guys have become healthy, the guys that were supposed to be out there playing are playing."
Jason Grodsky is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.