it would be 1 penalty stroke, but you’ve got to realize that tiger gets free drops from anywhere.all the referees let him off with everything.
one stroke penalty
1 stroke penalty.
rule 18-2.a
I think the penalty is 1 stroke for causing your ball to move. It would be 2 strokes if he had fell on the ball and did not replace it in the original position and proceeded on hitting the ball.