Mourinho insists he wants to keep Mata but refused to discuss his response if United offer to swap Rooney for Mata.
Mourinho said: "It’s hypothetical because they haven’t asked. The two answers we got from Manchester United were, 'We don’t accept the bid, we are not interested in selling the player'.
"Until Monday we have nothing more to add and we want to respect them and respect football."
For the big stories and the banter follow us on Twitter: @tribalfootball