David Beckham believes the current Manchester United team is as good as, if not better, than the treble-winning one he was part of in 1999.
Beckham comes up against the Red Devils on Tuesday night for the first time since leaving them seven years ago, and has tipped them for more glory if they are able to get past his AC Milan side.
"I think they are as talented as the team back then," said Beckham.
AC Milan v Man Utd: Beckham prepares for Champs Lge clash
"Teams like United, AC Milan, Real Madrid and Barcelona all move on. You don't become the biggest by standing still.
"In 1999 we won the treble and obviously the Champions League is so important to many clubs in football.
"United are always going to be a strong team."
The credit for United's constant evolution and improvement lies firmly with their manager, and for as long as Sir Alex Ferguson is in charge Beckham cannot see United taking a step backwards.
"Sir Alex always looks to improve the team and does that all the time," the England international added.
"He amazes people, but for those who have been around him, he doesn't amaze you any more.
"I know the talent and passion he has for the game and for United and it is huge credit to him and United as a club."
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