West had a 6.75 ERA in four innings over three games with Texas last season. He was 2-0 with a 0.68 ERA and three saves in eight games with Double-A Frisco and 3-3 with a 4.15 ERA in 33 games with Triple-A Round Rock.
Right-hander Cory Burns was designated for assignment by Toronto on Wednesday to open a spot on the 40-man roster.
Copyright 2015 by The Associated Press
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