ARLINGTON -- The Angels on Thursday placed starter C.J. Wilson on the 15-day disabled list with a sprained right ankle. Manager Mike Scioscia said Wilson, who remained in Southern California for treatment, "hopefully is missing a start or two at most."
Summoned from Double-A Arkansas was right-hander Drew Rucinski. Another reliever, Cory Rasmus, was recalled from Triple-A Sacramento. Dispatched to Arkansas was reliever Cam Bedrosian. Left-hander Nick Maronde was designated for assignment.
After a strong start this season, Wilson has been going through a rough stretch. Over his past eight starts, he owns a 6.81 ERA despite a 2-2 record.
'"C.J. has struggled," Angels general manager Jerry Dipoto said. "He hasn't had a good run. He knows it. We'll monitor how it goes. We don't anticipate this being a long thing with C.J."
The Angels will finish the first half with Garrett Richards, Jered Weaver and Tyler Skaggs on the mound against the Rangers over the weekend. Hector Santiago, who got the start in Thursday night's opener, is the swing man with Matt Shoemaker and Wilson filling out the rotation.
"I think it will have that benefit," Scioscia said when asked if the All-Star break comes at a good time for Wilson. "C.J.'s been kind of banging his head against the wall trying to get back to where he was. Maybe by exhaling a little and getting perspective, he can get back there a little quicker -- and he will."
The veteran southpaw is 8-6 with a 4.33 ERA overall in 19 outings. He sustained the injury fielding a ground ball in his start Wednesday, which lasted only 3 2/3 innings against the Blue Jays.
Lyle Spencer is a columnist for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.