I watched that match as well, they were very good. But Schalke has been all over the place this season. We're better than we were with Huub, and they aren't any better than they were then. And of course, this time we have a sold-out Toumba. My only immediate concerns for our lineup are how tired Varela might be, and how Klaus will play (especially with Henrique, who I'm going to assume he has little to no experience with).
We should also keep in mind all four players in our back line are sitting on two yellows. Any yellows in this match means we'll have to rotate...and possibly heavily.