Speaking to reporters after the game, the Portuguese boss said that his team were worthy winners at Stamford Bridge.
He said: "I think everything was under control and we played very well. The second and third goal killed the game.
"We have different people scoring goals. We are not perfect and we have to improve in every area, but we are doing well. [We have won five of] six matches in the Premier League. We are playing well and scoring goals.
"Every game in the Premier League, it's possible for a top team to lose."
Chelsea travel to Sporting Lisbon in the Champions League next week.