Liverpool manager Jurgen Klopp expects London's clubs to be title challengers this season.
Klopp was impressed by Arsenal's 6-0 preseason defeat of Sevilla yesterday.
He said, "Arsenal, I saw the result but pretty impressive 6-0 or whatever against Sevilla I don't think that ever happened to be honest.
"Chelsea will come or is there already, Tottenham improved a lot so it will be a tough, tough season.
"But we are here as well, we don't want to rest on what we achieved or not achieved in the last years, we are ready for the new challenge and that's all."