Good icon for the word "practice"? [closed]

I am creating a sports app where the users can track their practice for a specific aspect of the game. In my menu, I'd like an icon next to it to convey its meaning (and I have an icon for every other entry in the menu).

Right now I am using the Material Icon from Google "border color". I chose this because that function of the app creates a new entry for their practice stats. I'd rather have something that signifies the action of practicing rather than the function of the app.