Armenteros allowed one unearned run on two hits and one walk while striking out three over four innings in Tuesday's loss to the Angels.

The Astros were caught in a bind with injuries to starters, prompting them to make Tuesday's game a bullpen start. Armenteros was called up to provide the bulk of the innings and admirably did so on three days rest -- the right-hander just threw 95 pitches Friday for Triple-A Round Rock. He's expected to head back to Triple-A while the Astros reassess their rotation beyond the top three starters.

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