The 'no clear separation' thread got me thinking about a similar (and I don't think too unrealistic) situation:
BC loses the ball forward as he's about to score, it doesn't touch anyone else and before it touches the ground, he gets a hand on top of it and keeps his hand there until the ball hits the ground.
Knock on or try?
BC loses the ball forward as he's about to score, it doesn't touch anyone else and before it touches the ground, he gets a hand on top of it and keeps his hand there until the ball hits the ground.
Knock on or try?