The Football Association insists they have been given assurances that the new Wembley stadium will be ready to host next year's FA Cup final on 13 May.
The date for the opening of Wembley has already been put back
A report had suggested that FA officials privately rate the chances of Wembley staging the final as 50-50.
But a spokesman said construction firm Multiplex are on course to hand over the stadium on 31 March as planned.
The FA spokesman said: "Constructors Multiplex assure us the stadium will be completed on schedule."
The spokesman added: "We are working towards hosting the FA Cup final at Wembley Stadium next year.
"They are the experts in this area and we have to follow their guidance."
Multiplex have had some problems with work on the £757m stadium and are expected to lose money overall on the project.
Their initial completion date of 31 January has had to be put back to 31 March.
The handover will mean Wembley National Stadium Ltd (WNSL), an FA-owned subsidiary, taking charge of the ground.
Several warm-up events will be prepared to test the safety facilities, as demanded by Brent Council, before the first sell-out event at the stadium.