BRING A WATCH!!!

For the contest: Don't ditch the game by @WattpadPotterverse
Keeper prompt.

I am a backup keeper. All I've been doing during practice is sitting and watching, and sometimes practicing my skills. I'm not too good of a keeper - definitely not as good as the actual one - but my skills consist of my brain and its thought-power.
And this time, it's found a flaw in the game of quidditch - now, how will I communicate this to the rest of the world, especially since now I'm the keeper, since the actual one was severely injured?