[Del-Blue]

Raoul,

This would be a timing play, and if the runner crossed the plate before the appeal, the run would count. If there was a play at second on a missed base as you state, I would consider that as an appeal. It is obvious, the fielders have seen the missed base, and are trying to make the out. If the fielder makes an attempt to tag the runner comming back to second, I would go with the play, but if the fielder is just in contact with the base when they receive the ball and than look to the umpire, I would condiser that an appeal.