Sir Alex Ferguson, "Jose leaving Chelsea is a disappointment for the game. He was terrific for football and terrific for Chelsea. He brought something fresh and new to our game and I enjoyed the competition with him. I wish him well but I just don't know what I am going to do with my wine now."
And Fergie didn't waste anytime, immediately putting pressure on Avram Grant before Sunday's match, "He enjoyed unparalleled success there, without question. It is a big test for whoever replaces him - and at the moment that is Avram Grant.
"I will miss the personal challenge but what it does to them doesn't matter to me. We have to be focussed on ourselves and Sunday's game. We are still playing Chelsea. It is still the same players and that in itself is a challenge for us. If you look at the record between us over the last three or four years, there is nothing in it."
Roy Keane, "I have never come across him, but I just look at what he brought to the Premier League, and he raised the bar for everybody, even for the likes of United, the Arsenals. They had to liven up their act a bit, and they came back stronger again, United and Arsenal, in the last year or two.
"He turned a very good Chelsea team into a top team. That's the biggest step and the hardest step. There are lots of good teams out there - I could name you ten and say, 'they are a good team' - but they are not a top team, and that is the gap he bridged. He will be a loss to the Premier League, there is no getting away from that."