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The Sox also reinstated reliever Steven Wilson from the 15-day injured list. The right-hander went on the IL on May 20 with a back strain. He is 1-2 with a 2.84 ERA, six holds and 19 strikeouts in 21 relief outings. Wilson made two rehab appearances for Triple-A Charlotte before returning.

“I was kind of frustrated with it because I felt I was starting to get into a rhythm and feeling good on the mound,” Wilson said. “I had a couple good outings in New York (May 17 and 19) so that was frustrating. You never want to get on the IL.

“Thinking back, it happened when I kind of slipped on the mound in New York, that second outing the right side was kind of tight and when I worked out after that, my whole right side locked up when I was lifting. Kind of a bummer, freak thing but it is what it is.”

“It was unfortunate that we had to make a decision like that,” Grifol said. “We like what (reliever Justin) Anderson’s doing, we like what (reliever Jared) Shuster’s doing. So it’s not so much what he’s done, but it’s what he brought to us and also what these guys have been doing back there.

Seven starts into his comeback, the 29-year-old Buehler is 1-4 with a 4.64 earned-run average. He remains in an exploratory phase, learning what works for him at this stage of his career and what doesn’t.

“I’m not going to walk out there and keep getting killed trying to do what I used to do,” Buehler said. “I want to be successful. I want to help our team win. And so if that means I have to adjust, that’s what I’ll have to do.”