Royals' Michael Massey: Visits specialist

Massey (back) visited a specialist Friday and received multiple injections, Anne Rogers of MLB.com reports.

Manager Matt Quatraro said the Royals will wait to see how Massey's back responds to the treatment before determining when he will head to the minors for a rehab assignment. For now, the 26-year-old infielder remains without a clear return timetable, and he isn't eligible for activation until Tuesday.