Ronaldo has the 'wow' factor just like Best, says United legend Law

The former United striker believes Ronaldo deserves to be considered as one of the best three players in the world.

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He also believes the Barclays Premier League title will come down to a straight fight between Arsenal and United.

Law, speaking at the launch of the UEFA Cup final design at the City of Manchester Stadium, told PA Sport: "Ronaldo is playing absolutely marvellous football.

"There are players when they get the ball and you think 'Christ, something is going to happen here'. It doesn't always happen but you just feel it.

"We had players like that in my day with George Best.

"They are all a team but certain players make a difference and Ronaldo is one of those, and if they are injured or suspended then if can affect the team.

"He's a winger-cum-midfielder rather than a striker but he still scores and awful lot of goals - and he's good with his head."

Ronaldo is on the three-man shortlist for FIFA's world player of the year award, along with AC Milan's brilliant Brazilian Kaka and Barcelona's Argentina forward Lionel Messi, and Law said that acclaim was fully deserved.

He added: "I would say that you would be struggling to come up with a better trio than those three at the moment, I think he's right up there.

"I thought he might have a bit of a lean time after the World Cup because of certain things that happened there but he's proved that wrong.

"It has probably made him a better player because he has had to suffer some abuse, he came through that extremely well and it's not easy when you are a young lad."

In terms of the victorious manager in the title race this season, Law finds it hard to see beyond Sir Alex Ferguson and Arsene Wenger.

"I would say it will be between Arsenal and United, but so many things come into the equation between now and the end of the season," said Law. "If everything remains equal you would say they are the top two.

"The nice thing is they are both exciting teams who play football in the right way.

"Arsene has done extremely well, through the years he has lost some real key players and has still been able to slot people in.

"They had a bit of a dip over the last couple of years but you have to hand it to him they are back up there.

"He has created some lovely teams, and he knows he is in a battle with Manchester United."