Keane: Zizou the best
Keane, who admitted that failing to take part in the United's historic Champions League final against Bayern Munich still haunts him, is one of the key men if his side are to overturn a 3-1 deficit.
"The best player I've ever come up against would have to be Zidane," Keane told The Sun. "It seems so easy for him.
"He works hard on his game, he is a physically strong player, he's got a great attitude and has all the attributes.
"Look at his goal in the European Cup final last year. That's a top player, on top of his game.
"To score, on his weak side, a volley coming out of the air it was fantastic, and it was a great goal to win the European Cup it really was.
"I think he was the only player in the world who could have finished that goal and for that alone I think Real Madrid deserved to win it.
"You've got to take your hat off to him. He would have to be the best, and he's still probably improving which is the frightening thing for all of us!"
Keane was suspended when The Red Devils last lifted the European Cup, and he is desperate to put that right.
"I didn't feel part of it on the night we won," adds Keane.
"That's taking away nothing from the team.
"They were magnificent and I partied with all of them you know, but deep, deep down I felt I'd missed out.
"I got a medal back at the hotel but the medal means absolutely nothing to me.
"That's no disrespect to anybody, no disrespect to the players or the staff or the club.
"That's my own personal feeling. That's why, obviously, I'm trying to go and win my first one.
"If this team was to retire in a few years' time, and a lot of us will be retiring in a few years' time, you look back and say you won the European Cup once.
""That is why this year we are determined to try and win it. I think there is a belief every year that you can do well.
"Last year everyone felt it was all set up for us, because things hadn't gone so well in the league, especially in the first half of the season.
"But we'd been doing quite well in Europe, and we thought 'Oh this is our year.'
"Everyone got carried away because it was the final in Glasgow, the gaffer's place.
"The players were fairly focused on winning the tournament no matter where it was but, unfortunately, we came unstuck in the semi-finals and that can still hurt.
"We've done well in this competition but it is all about winning.
"I think we have improved over the years, but unfortunately we've not won it a few more times. A club like ours should be challenging every year, and moving on.
"We didn't win anything last season and it hurts, so we have to make sure it doesn't happen again this year."
