I was watching major league baseball the other night in a situation occurred that I thought we discussed a little bit so that umpires wouldn't forget, and more important coaches could learn from it and use it to their advantage.

A foul ball is treated like any fly ball whether it's fair file with runners on base. Coaches tend to forget that they can tag up in advance on a catch from a foul ball.   Every flyball whether fair or foul can be advanced on if the runner is tag up and touching the base when the player that's catching the ball touches the ball, side note here it does not have to catch only be touched, and then advances to the next base.

With that said runners and coaches shouldn't forget that when a foul balls caught a need to get back to their base, or the defense can touch the base first and the runner will be declared out on the appeal. I know nobody says anything in the everybody just does it and automatically the umpire calls out the runner if he's left the base to early is trying to return. But that really is an appeal play.

Remember you can advance on a foul ball that's caught or you can be put out a foul ball that caught just something to keep in mind.