I saw an interesting scrum last night at my kid's middle school baseball game. A 20 hopper was hit down the 1st base line. It followed the first baseline about 6" in till about 2 feet before first base. At that point it hit something and went airborne and veered over to the foul side of the line. The first baseman was standing on his bag - both feet in fair territory - and caught it in mid air with it never touching the ground in foul territory. The ump called the runner out and the batting team's coaches went nuts.
I was under the impression that as long as no part of a defender's body is in foul territory and the ball has not yet touched anything in foul territory the defender can grab it in mid air and make a play. The coaches seemed to diagree, obviously.
I know there's a few real umps on this board so I'd like to hear what the right call is.