Justine is probably the only one who can right now...Seems to me that Serena plays with her rivals for drama. It's unreal that she can always come back and win at will. Juju can play tennis unlike 99% of the girls on tour old sport.
serena has that massive reserves of power. and that near 120 mph serve doesnt hurt her cause. its the power that does the damage.
justine has to throw the kitchen sink at her. drop shots, drop volleys, short low slices to jerk serena round. well you get the idea.
bring serena in against her wishes and then hit a few topspin lobs if possible. justine just has to make sure that she gives serena different looks all the time and keeps her from getting any rhythm.