If Thing and Mr F are adjacent and both engaged with Super-Skrull and Thing would Knockback SS, but SS doesn't move due to Rubber Wrap, Mr F does not take damage.
Now the better question is what if Thing, SS and Mr F, were on 3 consecutive hexes in a straight line in that order and Thing punched SS "into" Mr F, should Mr F roll for Knockback damage, or does Rubber Wrap prevent SS from even running into him?
The EVEN better question is who would be foolish enough to line up the figures in that manner to ask the question in the first place?