Maybe Zack Greinke was flying so high after Friday’s start that he didn’t know what day it was.

Called into action Saturday to pinch hit for Marco Estrada in the fifth inning, Greinke came out wearing a jersey that read “Bierbrauer”, which honors Milwaukee’s German Heritage. The team is to wear those uniforms on Sunday as a part of German Heritage Day at Miller Park.

Ron Roenicke said his star pitcher was wearing a fleece over and nobody noticed until he was called into pinch hit for Estrada, who went five scoreless innings in the Brewers 1-0 victory.

“I had no idea,” Roenicke said. “It was blue, and that’s all it looked like to me. I didn’t know until one of the guys said something. He didn’t know [either].”

Greinke laid down a perfect sacrifice bunt, if you were wondering.