Manchester United have announced ambitious plans to be a new £2bn 100,000-capacity stadium close to their current home at Old Trafford.
Red Devils co-owner Sir Jim Ratcliffe said he wanted to build the "world's greatest football stadium".
But when? And how can they afford it? What does it look like? And what happens to the current stadium?
BBC Sport looks at some of the key questions surrounding the project.
Manchester United believe the new stadium can be completed in five years.
A project of this size would normally take around 10 years to complete.