“I think it is possible to be champion – before the season started we considered ourselves contenders but in modern football, especially in the Premier League, I don’t believe in an unbeaten run,” said the Portuguese.
“It is a good start and I believe my team can keep this stability.
“One day we will lose and the next game we will win again and one day we will play badly because it is the nature of the game but we will recover the quality of our game.
“I know that the negative moment will arrive, the defeat will arrive, and we are prepared for that.
“At this moment we are a happy camp. One day the defeat arrives and when it does we will be the same.”