Austin O'Callaghan presents live coverage of the first semi-final of 2011's Ulster Championship, between Derry and Armagh.Derry progressed with a comfortable first-round win over Fermanagh while Armagh's dramatic defeat of Down at the Athletic Ground saw them secure their semi-final place. Mark Sidebottom commentates while Thomas Kane provides match updates from the sideline.

Live coverage from St.Tiernach's Park in Clones of Tyrone against Donegal in the Ulster Championship semi-final.Mickey Harte's side are bidding for a third consecutive provincial title, while Donegal have already recorded impressive victories over Antrim and Cavan. Austin O'Callaghan is joined in studio by Martin McHugh and Jarlath Burns.Commentary by Mark Sidebottom and Peter Canavan.

It's eleven years since Derry last contested the Ulster Final but after and impressive semi final victory over Armagh they secured their place in the showpiece decider at Clones. A dramatic win over holders Tyrone saw Donegal take their spot after an absence of five years.Austin O'Callaghan presents the action live from St Teirnach's Park, Clones with analysis from Martin McHugh and Jarlath Burns. Mark Sidebottom is joined in the commentary box by former All Ireland winning manager Joe Kernan.