Real Madrid striker Ronaldo, "I'd say that as a lethal finisher, Ruud is the best in the world. I don't think there's any player in the world that truly makes a team but Manchester United without Ruud van Nistelrooy don't look like the same team. He had a difficult time with injuries last season, but this season I've watched him and he looks sharp - I think they can rely on him for 30 goals this season.
"Last year in an injury-ravaged season van Nistelrooy hit 20 goals in all competitions but by the end of the 2004 season he had bagged 37 and in the season before that he hit 47. There's no doubt Manchester United look very strong this year and with Ruud back to his best, they're more than capable of winning things in England and in Europe.
"Ruud and Wayne Rooney are becoming one of the world's best striking partnerships - they compliment each other so well. Wayne will play off Ruud, holding the ball up and providing him with great service. Ruud will be the box player scoring from yards out, while we know Wayne Rooney is capable of scoring from anywhere.
"I don't think there is a defence in Europe that will be able to cope with them on their day. And with those two players up front I believe they have a very realistic chance of winning the Champions League."