The German does not believes Liverpool and Arsenal have a chance of winning the title this season.
“It’s always the big four that everyone speaks about, but I think it’s still about Chelsea and Man United,” he told The Sun.
“Arsenal are already behind which makes it very difficult for them.
“Liverpool are very good at this moment but for me they are always a club for the Champions League, partly because they can put all their focus on one or two matches.
“But when you look at results and squads over the past couple of seasons as a whole, I think us and Man U are just a little bit stronger.”