Interference with F3 on Fly Ball

[IRISHMAFIA]

Originally Posted by MD Longhorn

I wish they would use that term (DDB) - it would be more clear. However, I'm saying this based on videos from the clinics.

Unfortunately, the rule only implies it, and doesn't state it outright. Here's one place:

12.19.1.4 Physical contact by the base runner with a fielder attempting to field
a fair batted ball or a foul ball that might become fair shall be interference,
provided the fielder had a reasonable chance to make a play and was
prevented from doing so.

I obviously do not have all the publications, but I read this as saying there actually has to be a play available to the defender for INT to apply. IOW, the defender had a play, not just running toward a ball with absolutely no possibility of getting anyone out even if the INT was not evident.