Mourinho remembers a star-studded United line-up when he first managed Chelsea and says not much has changed in the last decade or so.
"In my first time at Chelsea they had Roy Keane, (Paul) Scholes, players with big history there," he said.
"Now they have still players from my time, like (Rio) Ferdinand, (Nemanja) Vidic, (Ryan) Giggs, and they have this always mixed with very good young players.
"With that winning culture, that makes the basis of big clubs. And they are a big club for many, many years. They have everything."