Rangers P Kluber heads to IL with muscle tear

Texas Rangers right-handed pitcher Corey Kluber was diagnosed with a muscle tear in his throwing shoulder and can’t throw for at least four weeks, the team said Monday.Kluber made his first start in a Rangers uniform on Sunday and lasted just one inning. He tossed 18 pitches against the Colorado Rockies, striking out one and walking one, before he was removed after reporting tightness behind his right shoulder.An MRI on Sunday evening revealed that Kluber sustained a grade 2 tear of the teres major muscle. The team said he will have platelet-rich plasma therapy this week but will not require surgery.He will be placed on the injured list and replaced on the 30-man active roster.