A Pirates pitcher has suffered a setback.  Righthander  Tyler Glasnow who, is sufferung from right shoulder discomfort, left his rehab start with AA  Altoona on Sunday. Curve manager Joey Cora took out Glasnow after three innings.  He was suffering the same  discomfort that landed him on the disabled list.  In Glasnow’s three innings he surrendered two hits, three walks,  and five strikeouts.  He threw 55-pitches.