Los Angeles Dodgers pitcher Walker Buehler said Wednesday he shut down his comeback from Tommy John surgery this season because he wasn't recovering well after a rehab start. The right-hander tossed two scoreless innings in a rehab appearance on Sept. 3 for Triple-A Oklahoma City. "Trying to come back from a second Tommy John in 13 months to pitch in playoff games at some point had to go perfect and the nature of rehab is just that it doesn't always go perfect."