When he starts his run he thinks he is onside. Otherwise why bother.
Looks like he is about to touch it when he probably realises he is off and sees Bruno so he is actually trying his best to stay away from the ball. Just instinct, some great luck and timing and happened it very fast.
I think you are giving Rashy far too much credit to say he planned it all out to run 30 yards, actively shield the ball, know Bruno was coming, not touch it and fake out 2 defenders and the keeper all in this space of 4 seconds.
I know he is in good form but that is some fantasy land shit