Rooney has put pen to paper on a new four-year Manchester United contract worth £300,000 a week.
"The future is bright for Manchester United," Rooney said.
"This is still one of the world's leading clubs. We have seen this with the signing of Juan Mata in January.
"People have been saying we may have trouble attracting the world's best players but I think the fact Mata came here shows this isn't true.
"This is a new era for the club, we have a new management team and a great new manager in David Moyes, there has to be some time for change.
"We have some great players here and despite our recent form everyone has stuck together and the team spirit is still good, we will continue to work hard and get Manchester United to the top where it belongs."
After so much talk about the striker leaving Old Trafford, David Moyes was ecstatic to keep hold of his star man.
The United manager said: "I am thrilled that we have got Wayne Rooney to stay.
"He has been fantastic. Everyone would want him in their team.
"There were clubs who did want him. There were clubs who would have wanted him (had he not signed a new deal) but there was never going to be a chance he was going to leave Manchester United, certainly not on my watch."
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