Mourinho enjoyed a successful treble with Inter Milan last season as the Italian side came first in Serie A and also won the Coppa Italia and the Champions League.
“If we don’t win the league or the Champions League (this season), it would be a failure,” he told ESPN.
The former Chelsea coach also admitted that it will be difficult to unseat Barcelona as La Liga champions.
“Barcelona have a different dynamic right now (to Madrid), a philosophy going back a lot of years, players who have been together for many years and a coach who is approaching his third year,” he said.
“(But) at Madrid the most veteran player is (Iker) Casillas, who is 29, and the coach has just arrived.”
