If Zidane has better crossing, speed and shooting then play him at AMR, if not then play him as a striker. But it's up to you really

That's what I'd do though.
I think I may risk playing Petersen as a striker. Rival plays 3-2-3-2 and her full backs are 6* players, may be difficult for Petersen to work at his best, I also think that she has red arrows on them too. She doesn't have a very big team either so little chance of her changing formation in game, hopefully my team are up for this and not give away silly goals like they have this CL.