Greinke, pushing for the American League Cy Young Award, will make his final home appearance of the season at 1:10 p.m. CT on Sunday against the Twins, and the Royals announced a "Zack Pack" ticket promotion for the game.
Starting immediately, fans can buy half-price tickets for all seats priced $33 or less, excluding the $7 Fountain Seats. In addition, all Field Box, Field Plaza, Outfield Box and Loge Level tickets purchased with the offer include $5 in additional value for use at concession and retail outlets at the stadium.
Also, the first 10,000 fans ages 21 or older on Sunday will receive a "Greinke for Cy" T-shirt from Miller Lite. The club is also encouraging fans to wear those T-shirts or other Greinke garb and bring small signs of support at the season's last home game, which is not being televised.
The Majestic Team Store, located near Homeplate Gate C, will offer Greinke items, except jerseys, for a 23 percent discount in honor of his uniform number.
This won't be the last start for Greinke, who has a 15-8 record and the Majors' best ERA of 2.08. His finale is scheduled for Saturday, Oct. 3, at Minnesota.
In his past five starts, Greinke has allowed just one earned run in 35 innings for a 0.26 ERA while holding opponents to a .155 average. His record in those games is 3-0.
He's been particularly effective this year at Kauffman Stadium, posting a 1.73 ERA at home. That's by far the best home mark by any AL pitcher. Greinke is 9-3 with four no-decisions in 16 starts at Kauffman.
Dick Kaegel is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.