Neither. What I believe is that he'll start a full strength squad but give our midfielders -- who typically do more work than defenders and forwards -- a break starting around the 55-60 minute mark. Maybe Rashford as well, who today didn't quite look match fit to my eye and needs a bit more work before the cup final.
Be mad to start people like martial/Varane who are injury prone and even Casemiro and Bruno who are our main players. I’d also keep rashford as far away from the team as possible. He’ll be massive against city.