RowJimmy hopefully he's not needed. But if he is, I'm confident he should be able to step up to the plate. PSV isn't exactly a fearsome team, and the lack of leadership/team ethic in that Madrid side is well documented. We did lose to PSG so just putting it on your CV that you played against them isn't worth much in my opinion.
We are an extremely well drilled defensive side, so it's easier for a Kiwior to slot in and his weaknesses are going to be covered more often than not. And if he's fresh and in good form, he'll look decent. Let's see how he fares in a full season in Portugal. Fortunately for him Gyokeres won't be there anymore to put a mask on his ass.