All though Rüdiger has gotten his debut in the German national side, he has only got one full season in the Bundesliga under his belt as far as I know, so I'd prefer someone a little bit more experienced. He's a big talent, but I feel it could be well much to expect him to make an impact in the PL straight away. Abdennour on the other hand looks like a leader and has the experience, but would he come here? He would also be a cup of nations candidate, wouldn't he? I would at least be much more comfortable with an experienced player next to Mbemba.