Darren Fletcher, "It's so hard to do without him. He's such a great player, I'd love to see him spend a few more years at United and finish his career there.
"At first he'd give me bits of advice but, over the last two years since I've been in the first-team, I just sit back and watch him: how he prepares himself for games, where he positions himself during matches, that sort of thing. He is the best trainer at the club and is brilliant in practice games; no one can get near him.
"It's clear we are not totally comfortable with his absence yet. When Roy Keane is not there for United, we miss that natural leader. It's hard to do without him and, when it falls to someone else to stand in - whether it's myself, Alan Smith or Paul Scholes - we know we will not replace Roy. We can only hope to be as effective as we can.
"Whoever comes into the team always faces the same label: 'It's not Roy Keane.' I don't think that feeling will be dispelled until we win a few trophies without him. I know he's 34 now and people are wondering whether he has another two seasons left in him, but that would be no problem for Roy. I have heard all the speculation about where he is supposed to be going when he leaves Old Trafford, but I'd just love to see him stay."