The Texas Rangers have optioned right-handed reliever Cory Burns to Triple-A Round Rock to make room for Ross Wolf for a spot start Wednesday against Oakland.
Wolf will be the second pitcher in three days to make his first major league start for the Rangers after previous stints with other teams as a reliever. Josh Lindblom lost to the A's on Monday.
The 30-year-old Wolf last pitched in the majors with Oakland in 2010. The right-hander has 25 career relief appearances. He was 1-1 with a 1.85 ERA in six starts for Round Rock.
Burns had no record and a 4.91 ERA in three appearances after being called up to Texas last week.
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