Bob Uecker was urging 7-year-old Joseph Knapp to show his scar from kidney cancer surgery. “Come on, man, where is it?” Uecker said the other night in the Brewers’ radio booth at Miller Park.

Knapp, who was visiting Uecker as part of the Make-a-Wish Foundation program, shook his head. He didn’t want to.

“Come on, let me see it,” said Uecker, the longtime play-by-play voice of the Brewers. “I’ll show you mine.”