Let's talk about Harris's catch.

[kevonm]

And my question is, if he didn't continue the entire catch process, how long is long enough? Does he need to hang on for another full second, does he need to complete the wrestling match with the defender? Can the ball be knocked out of his hands at any point until the whistle is arbitrarily blown? Even if we say this is definitely not a catch, how late can the ball be knocked out and it be a catch?