"We go way back to when I was little," McCaffrey said Wednesday, per the Bay Area News Group. "I think he babysat me some times."
Shanahan seemed to recall the same, referring back to a period in the late 1990s when his father Mike coached McCaffrey's dad, wideout Ed McCaffrey, during their time together with the Broncos.
"If I did [babysit him], I probably left my sister to do it very quickly and moved on. His dad was my hero growing up," Shanahan said. "I was close with Ed and his wife Lisa -- that's really why I wore 87 in college. Ed was the man. I knew all his sons, they're a lot younger when I knew them, but they've all turned out be pretty good athletes and real good people."
We'd like to get a triple source here, considering neither McCaffrey or Shanahan offered rock-solid confirmation of a babysitting arrangement. Around The NFL is working the phones on this case and will update this space if and when we learn more.