Royle believes the striker's career should be applauded.
“We knew then that he was an exceptional talent. I doubt very much he was even 10 years old.
“He's been a great servant for Everton, United and England.
“It was hard for Everton in general last season and at least he can walk away with his head held high.
“Good luck to him – we can only wish him all the best. Wayne's been a top-class player. You never lose your talent but sometimes the running side of the game gets harder.
“You are not the leading goalscorer for your country for no reason.
“He obviously wants to try something new and it will suit him in America. I don't think it's going to be financially negative for him, either.
“I'm sure his talent will show through in the US, as it did with George Best and all the other greats."