Paulino started a rehabilitation assignment on June 11, when he pitched five scoreless innings with two hits, six strikeouts and two walks for Double-A Northwest Arkansas. He returned to Kansas City with lower back stiffness on June 17, and after also being treated for shoulder stiffness, restarted his assignment on Saturday, allowing two runs on three hits and two walks with two strikeouts in three innings of Northwest Arkansas' 6-5 loss to Tulsa.
Dick Kaegel is a reporter for MLB.com. Kathleen Gier is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.