George Best believes £27m teenager Wayne Rooney will go on to become one of the all-time legends at his new club Manchester United.
Rooney is already drawing comparisons with Eric Cantona and Best, another teenage prodigy at Old Trafford, after a hat-trick on his United debut.
"You look at that performance and you have to say that's as good as anything you've ever seen," Best said.
"I've been saying that for two years and he's getting better and better."
Best believes "the sky is the limit" for Rooney, but believes United already have a superstar on their hands.
"He's got to maintain that level of performance but there's no reason why he shouldn't," Best told BBC Radio Five Live.
"He's got everything going for him, he's looking the complete player at 18 years of age.
"He can handle himself, he has two good feet, he's good in the air, he's got
"You go through all the greats at Manchester United and you've certainly got
to put him in there."
But Best, one of the first footballers to find himself on the front pages of the newspapers as often as the back, had a word of warning for Rooney.
"The fact that he's playing for Manchester United means he's going to get hounded 24 hours a day.
"But he's got the top man looking after him in Sir Alex Ferguson and he's been through
it before with people like Ryan Giggs and Eric Cantona.
"It is something (Rooney) is going to have to learn how to handle and it is not easy.
"His main objective away from football will be to keep off the front pages."