Roma coach Jose Mourinho insists Inter Milan are the best team in the country.

Roma and Romelu Lukaku go to Inter on Sunday.

And Mourinho insists they travel to San Siro as clear underdogs ahead of the Serie A clash.

He said, "Inter he should win the championship with a twenty point advantage with the team he has. Against them we will have to play to the best of our ability because they are very strong.

"Lukaku must play. I didn't know he was so important in Milan, because what he did: winning the Scudetto, two cups, a super cup, was done by 200 players at Inter. Afterwards it's interesting to understand why if Lukaku goes from Inter to Roma helping their coach is a drama, while in the past Cannavaro went from Inter to Juve without problems.

"Romelu going to Roma is a surprise because I didn't think he would be in the hearts of the Inter fans."