This is an interesting one

[bluehair]

I hope the OP has been resolved and I'm not hijacking this thread.

I had a similar play. U14 select ball. No one on (partner in A). B hits grounder to F4. I'm starting to follow B up the line when a ball from an adjacent field comes into the infield. There are now two ground balls (other ball bounces towards F6), but everyone knows which one is ours. F4 fields the ball cleanly and I am shouting to everyone "PLAY ON". But instead of F4 getting the easy out, he starts watching the other ball and doesn't make a throw. I asked partner if he called time. No he didn't. I let the play stand. B on 1B.

Should I have killed the play? If so, by what rule/authority?