on deck batter

[mbyron]

Originally Posted by bob jenkins

Thanks.

What would JR do if someone (relief pitcher / catcher) in the bull pen accidentally picked up a fair batted ball (thinking it was foul)?

Assuming that they belonged to the offense, that's covered under "Interference by an Offensive Teammate." The infraction occurs when a teammate:
1. "blatantly and avoidably hinders a fielder's try to field a fair or catchable batted ball or thrown ball."
2. "intentionally hinders or impedes a fielder's try to field a fair or catchable batted ball or thrown ball."
3. "physically assists a runner."

The penalty is that the runner being played on or assisted is out.

References are 7.09(e) and 7.11.

It's a very good question how to handle that sitch if the DEFENSIVE bullpen grabs a live ball!