Waivers on Villarreal will expire Monday.
Abercrombie hit .188 with one double and one home run in 14 games for Houston this season.
Villarreal went 1-3 with a 5.02 ERA in 35 appearances for the Astros this year.
Astros OF Abercrombie sent to minors
HOUSTON The Astros on Thursday also announced pitcher Oscar Villarreal has
rejected his assignment to Round Rock. Houston has put Villarreal
on waivers for the purpose of giving him his unconditional release.
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