its a gd ploy i tell ya and i hate him for it. ( not really its brilliant )
He lulls defenders into a false sense...he aint running, darting and making defender FOCUS on him. He is actually taking their focus down a notch. And yes your son is right...watch what happens. Defenders cannot "switch on" as fast as he can move with the ball.
Bye defender.
I think some of it is him resting to hit that burst, but i think he has figured out how to get defenders to drop a level down on focus and hit em when they arent ready. He is a bonafide grand master in soccer.