Manchester United boss David Moyes has insisted the club have the power to compete for any player, but believes fans must be patient.
United, who have yet to make a major signing this summer, have seen bids for Barcelona star Cesc Fabregas turned down in recent weeks, but the United boss is confident that the Red Devils can continue to attract the best players.
The 50-year-old also hopes he will be given time to succeed at Old Trafford, as he told reporters: "If you win one game folk will think you are good. If you lose one folk will think you are rubbish.
"You hope there is a little bit of sense and people understand where you are going. It is a big job. It is a new job. It will take time, as it would for anybody else.
"That is not something Manchester United are frightened of. Manchester United are more than happy to compete with all of the teams.
"There has been a change in the dynamic because of PSG coming on the scene recently. That has altered things.
"But Manchester United will always compete. One thing it has got is the history. It has got the name. It has got the success. That is a big pull for any player."
Moyes' first competitive game in charge of the Red Devils will be against Wigan Athletic on August 11 in the Community Shield. This will give the Scot an early opportunity to claim his first piece of silverware for the Old Trafford outfit.
United's first Premier League game of the season will see them travel to south Wales to take on Swansea City, before Moyes takes charge at Old Trafford for the first time when United entertain Jose Mourinho's Chelsea on August 26.
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