SURPRISE, Ariz. — On opening day, the Kansas City Royals will hand the ball to one of the three pitchers in franchise history who’ve won a Cy Young Award: Zack Greinke. Greinke will start the season opener against the Cleveland Guardians on Thursday, April 7 at Kauffman Stadium, Royals manager Mike Matheny announced following Wednesday’s spring training game. “This decision was made the day we met, before he even signed here,” Matheny said. “It was very clear to him the expectations of what he was going to do for this club. I told him, as soon as we get the green light, we’ll rewrite what it l…