Zack Greinke hit the I-70 Series in overdrive.
Greinke beat the St. Louis Cardinals as the Royals took the opening game of the Interleague intrastate series, 4-2, in front of a sellout crowd of 38,916 on Friday night at Kauffman Stadium.
The win, Greinke's second in his past three starts, gave him a 3-8 record as he attempts to get his season in a higher gear.