Rangers activated LHP Matt Harrison from the 60-day disabled list.
Matt Harrison will undergo surgery on Monday to alleviate the thoracic outlet syndrome in his right shoulder.
Matt Harrison has been shut down for the year.
Matt Harrison was removed from Friday's minor league rehab start with Double-A Frisco due to numbness in his left hand.
Matt Harrison (back) is expected to make at least three more minor league rehab starts.
Matt Harrison (back) allowed one run over 3 2/3 innings in second rehab start Sunday for Double-A Frisco.
Matt Harrison (back) said he expects to begin a rehab assignment Wednesday.
Matt Harrison (back) threw 50 pitches of batting practice on Saturday and may start a rehab assignment soon.
Matt Harrison (back) felt fine after throwing a session of live batting practice on Wednesday.
Matt Harrison (back) will throw live batting practice Wednesday.
Matt Harrison (back) threw 25 pitches at 75 percent intensity Thursday during a bullpen session.
Matt Harrison (back) is hoping to begin throwing off a mound just after the All-Star break.
Matt Harrison played catch Monday for the first time since his back surgery.
Matt Harrison (back) isn't expected to rejoin the Rangers until September.