The Royals could give Zack Greinke an additional day of rest prior to his next start. Greinke, a Cy Young candidate, threw 125 pitches on Saturday night and Kansas City manager Trey Hillman said he'll likely push his ace's next start back. He is 13-8 with a 2.22 ERA and 210 strikeouts in 198 1/3 innings this season.