Pirates All-Star closer Jason Grilli pitched a simulated game Wednesday and is close to a return from a strained right forearm. Grilli threw 25 pitches to a handful of teammates and said he is encouraged by the results. The 36-year-old has been on the disabled list since injuring his arm in a 6-5 victory over Washington on July 22. Barring a setback, manager Clint Hurdle expects Grilli to make a rehab appearance for Double A Altoona on Saturday . . . Mets pitchers Jenrry Mejia and Jeremy Hefner both underwent elbow surgery. Mejia had a bone spur removed and hopes to be ready for the start of next season. Hefner had Tommy John surgery and will likely be sidelined at least a year. Full story for BostonGlobe.com subscribers.
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