Manchester United legend Bryan Robson is unconcerned over the new threats to their dominance.

Robbo is backing his old club to stick to their methods.

Robson told the Manchester Evening News: "Yes, there are a lot of teams about with a lot of money backing them. But Manchester United will always stick by their policy of bringing players through the system and matching that by buying top players as well.

"We will always have challenges but money itself is no guarantee of trophies, as PSG proved this season, and we don't really have any concerns.

"It has taken 50 years to build the tradition Manchester United has.

"Over the last 20 years, no-one can rival the success the club has had. Not just in football competitions, but also with our fan base."