"The Astros announced that they have Armando Galarraga for assignment. The move will create room for right-hander Hector Ambriz, who had his contract purchased from Triple-A Oklahoma City.
"The 30-year-old signed a minor league deal with the Astros in late May to help fill a spot in Oklahoma City's rotation. Galarraga wound up making five starts for Houston this year, posting a 6.75 ERA with 17 strikeouts and 18 walks. For his big league career, Galarraga owns a 4.78 ERA with 5.7 K/9 and 3.8 BB/9."