Playing for the Chicago Cubs from 1960 to 1973, then for a final season with the Chicago White Sox, Santo hit 342 career home runs, won five Gold Glove awards for fielding and was named an All-Star nine times.

He was a key figure on the 1969 Cubs team that was leading the Mets by 13 games in August before collapsing. That team gained a particularly agonizing niche in the star-crossed history of the Cubs, who have not won a pennant since 1945. But Santo endeared himself to the Bleacher Bums in their hard hats at Wrigley Field that summer by clicking his heels with joy after victories.

That Santo was on a major league field, let alone starring alongside the future Hall of Famers Ernie Banks, Billy Williams and Ferguson Jenkins, seemed remarkable.

When he took a routine physical in 1959, on the brink of making his Cubs debut, Santo was found to have juvenile diabetes. He began taking insulin within two years, but kept his diabetes a secret from the Cubs until being named to his first All-Star team in 1963, fearing that management’s knowledge of his illness might have damaged his career. He did not allow the public to know of his diabetes until his final years with the Cubs.

I’ll never forget watching Santo run to the left field dugout after wins in ’69, jumping in the air and clicking his heels. Thanks, Ron — for everything you did for Cubs fans…