Mertesacker said: "Chelsea against Spurs is a good game for us, but both have it still in their own hands.
"We are in a holding position. We can't do anything on Wednesday.
"Anyway, we have to win both the games that are coming. We have to keep focused and be confident.
"We have teams to face who are under pressure. I think that makes it good for us and that we keep our focus on a very high level."