Billy Burns is back to captain Ulster for Saturday's Guinness Pro14 semi-final against Edinburgh. The fly-half is one of three changes from last week's meeting with Leinster.

Jacob Stockdale will once again take the 15 jersey, with wingers Rob Lyttle and Louis Ludik completing the starting back three.

For the third game in succession, James Hume and Stuart McCloskey will pair up in midfield. John Cooney will line up alongside Billy Burns in the half-back positions.

The front row is unchanged from the game against Leinster, with Rob Herring retaining his starting berth at hooker, as well as Eric O'Sullivan and Tom O'Toole at loosehead and tighthead props respectively.

Alan O’Connor is the only change to the pack and comes in to join Sam Carter in the second row. Matthew Rea and Jordi Murphy have been named as the flankers with Marcell Coetzee packing down at number eight.

John Andrew, Jack McGrath, Marty Moore, Kieran Treadwell and Sean Reidy provide the forward options off the bench, while Alby Mathewson, Ian Madigan and Michael Lowry are the backline reinforcements.

Scottish lock Grant Gilchrist makes his 150th appearance for Edinburgh meanwhile.

The inclusion of Gilchrist is one of eight changes that Edinburgh show, with Scotland internationals stars Mark Bennett, Rory Sutherland, Stuart McInally, WP Nel and Ben Toolis all returning to start.

Back pairing Jaco van der Walt and Nic Groom also get the nod for Edinburgh

Ulster team: Jacob Stockdale, Louis Ludik, James Hume, Stuart McCloskey, Rob Lyttle, Billy Burns (Capt.), John Cooney, Eric O'Sullivan, Rob Herring, Tom O’Toole, Alan O’Connor, Sam Carter, Matthew Rea, Jordi Murphy, Marcell Coetzee.

Replacements: John Andrew, Jack McGrath, Marty Moore, Kieran Treadwell, Sean Reidy, Alby Mathewson, Ian Madigan, Michael Lowry.

Edinburgh team: Blair Kinghorn; Darcy Graham, Mark Bennett, Chris Dean; Duhan van der Merwe; Jaco van der Walt, Nic Groom; Rory Sutherland, Stuart McInally (Capt), WP Nel; Ben Toolis, Grant Gilchrist; Magnus Bradbury, Hamish Watson, Viliame Mata.

Replacements: Mike Willemse, Pierre Schoeman, Simon Berghan, Andrew Davidson, Jamie Ritchie, Charlie Shiel, Nathan Chamberlain, George Taylor.