Before a ball was kicked in anger last weekend, Manchester United, under new manager David Moyes, had been made third favorites to win this year's Premier League - despite being the champions.
Many pundits had decided that Manchester City and Chelsea would be the teams to beat this season and United would have to settle for a place outside the top two.
However, after their fantastic display at Swansea City - where the team recorded a 4-1 victory - the Red Devils sent out a clear warning to their Premier League rivals. The message was that it's far too early to write United off.
Under Moyes, United don't have a manager that has been there and done it before, however what they do have is a tradition, an experienced group of players, knowledgeable coaching staff and a number of youngsters chomping at the bit to win titles and make an impression at Old Trafford.
United still have Robin van Persie, they still, for now, have Wayne Rooney and with players like Rio Ferdinand, Nemanja Vidic, Patrice Evra, Michael Carrick and Ryan Giggs around, it would be foolish to think the Red Devils can't win the title this season.
Additionally, it's expected that United will make at-least one signing before the close of the transfer window and if Moyes can bring the right player or players to Old Trafford then the champions will be even stronger.
And, all the noises coming out of the Old Trafford camp is that, despite the change in manager, things will be very much the same when on the hunt for silverware this season.
Manchester United, as a football club will not change, the ground, the atmosphere and red shirts in-front of visiting players will still provide an intimidating place to play. And Moyes will relish his opportunity to challenge for a league title.
There are not many managers that know the Premier League better than him. He can, like Sir Alex, implement a winning culture into his team, and in all honesty it's a team that already knows how to win. They're the reigning champions remember?
Writing Manchester United off could be biggest mistake of the season yet and the Premier League has only just begun.
Moyes and his side could send out an even bigger statement on Monday night when Mourinho's Chelsea side visit Old Trafford. Prepare for an explosive affair.