Rodriguez, 25, was designated for assignment last week after surrendering 19 earned runs over 26 appearances. In 38 games over the span of the last two seasons with the Phillies he had a 5.40 ERA.
The Phillies acquired Rodriguez in December 2014 when they traded Antonio Bastardo to Pittsburgh.
Rodriguez's final appearance with the Phillies came in last Wednesday's 14-1 shelling by the Braves; he walked two batters and allowed three inherited runners to score in two-thirds of an inning.
“Poor command,” manager Pete Mackanin said of Rodriguez's effort. “Couldn't locate his pitches.”
Immediately after the trade Texas optioned Rodriguez to triple-A Round Rock.
___________________________
Follow Patrick on Twitter: @PGordonPBR
