[Bagman62]

I would confirm with the coach that the Pinch Runner is a substitute (preventive umpiring)and make the change on my lineup card and report to official scorer. If I saw the starter return I would ask the coach if this was a reentry, again defensive umpiring, if reentry report to official scorer. Then the pinch runner is a substitute that has been in the game and is eligible for reentry.

Without the defensive umpiring you may set your self up for an appeal of an illegal sub as the changes can not be made on condition and must be made at the time the substitution takes place