My former colleague Garry Meier (I produced the Steve & Garry show at the Loop in the late 80s/early 90s) has been doing the midday show at WGN this week and Wednesday he interviewed Ron Santo.
I don't know if you know the background on this, but Garry did a show on WCKG a few years ago and one of his show contributors (Jim Turano) did a great impersonation of Ron Santo.
This is a first. Ron Santo talks to Ron Santo. It's a classic.
The audio is here.