Ulster have made two changes to their side to play Harlequins at Twickenham Stoop in the Heineken Champions Cup on Friday, kick-off 7.35pm.
Matt Faddes returns to the starting Ulster side on the right wing, joined in the back three by Jacob Stockdale who retains his position at full-back, and Louis Ludik, who switches over to the left wing.
In the midfield Stuart McCloskey is once again paired with Luke Marshall. The familiar half-back duo of Billy Burns and John Cooney is also retained.
The second change sees Kieran Treadwell return to start alongside captain, Iain Henderson in the engine room.
In the front row, Eric O'Sullivan will start at loosehead prop, Rob Herring at hooker, and Marty Moore on the tighthead side. Sean Reidy, Jordi Murphy and Marcell Coetzee all keep their places in the back row.
Ulster: Jacob Stockdale, Matt Faddes, Luke Marshall, Stuart McCloskey, Louis Ludik, Billy Burns, John Cooney; Eric O'Sullivan, Rob Herring, Marty Moore, Kieran Treadwell, Iain Henderson (Capt.), Sean Reidy, Jordi Murphy, Marcell Coetzee.
Replacements: Adam McBurney, Andrew Warwick, Tom O'Toole, Alan O'Connor, Matthew Rea, David Shanahan, Bill Johnston, Craig Gilroy.
Harlequins: 15. Ross Chisholm, 14. Vereniki Goneva, 13. James Lang, 12. Francis Saili, 11. Cadan Murley, 10. Brett Herron, 9. Martin Landajo, 1. Santiago Garcia Botta, 2. Elia Elia, 3. Kyle Sinckler (c), 4. Stephan Lewies, 5. Tex Cavubati , 6. Will Evans, 7. Semi Kunatani, 8. Alex Dombrandt.
Replacements: 16. Jack Musk, 17. Nick Auterac, 18. Simon Kerrod, 19. Dino Lamb, 20. James Chisholm, 21. Niall Saunders, 22. Paul Lasike, 23. Travis Ismaiel.
Follow all the weekend's Champions Cup action with RTÉ Sport Online and the RTÉ News Now app and listen to live coverage of Leinster v Northampton on RTÉ Radio 1's Saturday Sport.
