A proposal to rebuild Casement as a venue for the Euro 2028 games collapsed last year when the government said it would not bridge a funding gap to deliver the project in time.
He said while the Executive, GAA and the Irish Government have set out their contributions to fund the building of the stadium, the onus is now on the UK Government to do the same.
Sinn Fein has urged the UK Government to “stop dithering” and “fulfil its pledge” to help fund the rebuilding of Casement Park.
Speaking afterwards, Mr Murphy said Sinn Fein reaffirmed its “full support for the transformative rebuild of Casement Park”.
“For too long, the British Government and the Communities Minister have dragged their heels and failed in their commitment to help fund Casement Park,” he said.
