There is certainly a level of force where an otherwise fair shoulder challenge becomes a foul. This does start to move toward that line but I agree with the others that does not appear to cross it. I guess it will always be up to the referee on the field to consider the age and skill and decide what is too much.
It's a trick question. The referee is standing on the 35-yard-line, so he's not going to blow the whistle for a PK on a play like is in the video. Would have to be something indisputable: Attacker has the ball, is heading toward goal, has a clear shot, but is fouled.At what point does the whistle get blown on the following:
"Spirit of the Game" = No whistle.Starts with the shoulder, finishes with the arm. Without the arm motion, the other player stays upright and the defender can't clear it.
It is a push.