I think he clearly kicked the ball boy before the ball.
I actually like what the ball boy is doing. Very smart. Recently I remember one match where the manager was unhappy the ball boy returned the ball too fast and then they conceded shortly after. He is the son of the Swansea director and he is going to do whatever he can to make sure Swansea are through to the final.
Not like it will make any difference though. 13mins left with 2 goals to chase.