[Mick]

Well Elway and Russell played minor league baseball so I'll guess that for all 4

That is correct. We can also add Russell Wilson, Michael Jordan, Ricky Williams, Sammy Baugh, and Ron Shelton to the list.
Nine famous former minor league players found in Out of the Park Baseball 17 | Sporting News

Garth Brooks actually signed a minor league contract with the Padres. And John Dillinger was a baseball player of some promise who earned $75 a month batting leadoff and playing shortstop for a semi-pro team. The 5'7" Dillinger's nickname was "Jackrabbit" and he was supposedly drawn into a life of crime by an ex-con named Singleton who umpired his games.

Interesting story: 
John Dillinger was a standout baseball player before criminal life

Bank robber John Dillinger played baseball

And speaking of criminals, former Dodger pitcher Trevor Bauer is now playing baseball in Japan.
https://www.msn.com/en-us/sports/mlb/tre...6f1d&ei=47

[Mick]

Well Elway and Russell played minor league baseball so I'll guess that for all 4

That is correct. We can also add Russell Wilson, Michael Jordan, Ricky Williams, Sammy Baugh, and Ron Shelton to the list.
Nine famous former minor league players found in Out of the Park Baseball 17 | Sporting News

Garth Brooks actually signed a minor league contract with the Padres. And John Dillinger was a baseball player of some promise who earned $75 a month batting leadoff and playing shortstop for a semi-pro team. The 5'7" Dillinger's nickname was "Jackrabbit" and he was supposedly drawn into a life of crime by an ex-con named Singleton who umpired his games.

Interesting story: 
John Dillinger was a standout baseball player before criminal life

Bank robber John Dillinger played baseball

And speaking of criminals, former Dodger pitcher Trevor Bauer is now playing baseball in Japan.
https://www.msn.com/en-us/sports/mlb/tre...6f1d&ei=47