It is clear Mourinho would like to win the club's first Barclays Premier League title since 2010.
Mourinho, who in 2005 guided Chelsea to a first championship in 50 years, said: "A competition like the Premier League the best team wins. The best way to work is to try to be the best team.
"It's a championship in European football where we have more candidates to win, so because of that it's more difficult to win.
"Both teams in Manchester are top teams - the last two champions of the Premier League - Liverpool are coming up with Brendan (Rodgers), Tottenham are a fantastic team with some new players for sure and Andre (Villas-Boas) will also have a fantastic team, Arsenal the same.
"But we want to be there and we'll be fighting for that."