West Notes: Doolittle, Jay, Myers, Miller

The Athletics announced the activation of lefty Sean Doolittle, who had been sidelined with a shoulder strain. As MLB.com’s Jane Lee reports, the late-inning southpaw says that his rehab took longer than expected and that he only recently was able to recapture the mechanics and velocity he is accustomed to. Doolittle now hopes the shoulder woes are in the rearview mirror, but his ability to stay healthy over the long haul will remain an important question for Oakland.

Here are a few more notes from out west …

• Padres outfielder Jon Jay is set to begin a rehab assignment tomorrow, Dennis Lin of the San Diego Union-Tribune reports on Twitter. The veteran wasn’t able to return in time to become a trade piece, and the Pads are well out of contention, but he has plenty to play for. The outcome of his upcoming free agency could depend quite a bit on whether he can return to being the solid regular he was before fracturing his forearm on a hit-by-pitch. (In case you missed it, San Diego reportedly has interest in exploring a reunion.)
• Linlooks at the second-half struggles of Padres first baseman Wil Myers. After a big start to the year, Myers has been slumping for about six weeks even though he remains healthy. The 25-year-old hinted that he is battling through the mental and physical grind of a long season, but says he expects to learn and improve from his lull at the plate. It will be interesting to see whether and how Myers’s fall-off will impact the chatter about an extension we heard earlier in the summer.
• Shelby Miller showed promise in his return to the Diamondbacks, as Nick Piecoro of the Arizona Republic writes. While he started rough, Miller was able to buckle down and deliver six solid frames. The embattled righty says he ironed out his mechanics in the minors, and that seems to have shown through in his good Triple-A results. He still has a ways to go in re-establishing his trajectory, but Miller worked in the mid-nineties with his fastball and filled up the zone in his first outing back in the majors.