"We know we are on a good run in the Premier League, but it needs more than just playing with full freedom and vision," said the German.
"Then we can switch the rest on. You have seen what can happen after that. We have players who can play so quickly together.
"Tomas Rosicky came in and fitted into everything as well as Mesut Ozil or Jack Wilshere. When those three combined together, you could feel some magic in the air, a real chemistry."
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