Bass was playing catch before Tuesday's 8-0 loss to the Texas Rangers, and felt discomfort in his right side while reaching out for the ball. Brian McTaggart of MLB.com tweeted the roster moves that followed:
Astros have recalled RHP Josh Fields from OKC y and have placed RHP Anthony Bass on the 15-day Disabled List with a right intercostal strainOriginally projected to be the setup man, Bass has also earned two saves in three chances. He's thrown 18 innings this season, posting a 4.50 ERA and 1.22 WHIP with just four strikeouts. Hopefully, he won't be on the sidelines for too long, but injuries to rib cages and obliques always take longer than most.
— Brian McTaggart (@brianmctaggart) May 14, 2014
The Astros recalled Josh Fields from Triple-A Oklahoma City to take Bass' roster spot. The right-hander also has two saves in three opportunities, while striking out 15 in 12 innings pitched. However, opponents are hitting .340 off him, leading to a 12.00 ERA and 2.08 WHIP.
He only appeared in three games for Oklahoma City, but didn't allow a run through three innings of work.
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