Rooney signed the five-year deal on Friday after a sensational week at Old Trafford. Only two days before Rooney had stated that he wanted to leave United, citing the club's lack of ambition as his reason.
But on Friday, Rooney said he was given the assurances he needed by the Glazers, Sir Alex Ferguson and David Gill and signed the deal, worth a reported £60 million over five years.
The contract makes Rooney the highest paid player in the Premier League, overtaking Manchester City midfielder Yaya Toure who is reported to be on a mere £220,000 per week.
Rooney faces a battle to get Manchester United fans back on side though, with many incensed at his actions over the past week.
This reached a head on Thursday night when a mob of around 30 United fans gathered outside Rooney's house, with banners reading 'Sign for City and die'.
If he's to regain their support, it will be through his actions on the pitch, and he won't be able to do that for another three weeks due to an ankle injury.
Rooney could return, however, just in time for the Manchester derby at Eastlands on November 10.