Former Cubs catcher David Ross filled in for Jessica Mendoza on ESPN's broadcast of Sunday Night Baseball between the Cardinals and Cubs as a color commentator. The broadcast booth for this one was a makeshift one out in the right-field bleachers. 

With former teammate Ross close enough, Cubs right fielder Jason Heyward decided to play catch with him between innings early in the game. Via ESPN: 

As former Cardinals and Cubs broadcaster Harry Caray would say, you can't beat fun at the ol' ballpark.