Ulster head coach Dan McFarland has made two changes to his side for tomorrow's Heineken Champions Cup trip to Harlequins.
Matt Faddes comes in on the right-wing in place of Craig Gilroy, while Kieran Treadwell is preferred in second-row to Alan O'Connor.
Both O'Connor and Gilroy are now on the bench.
Faddes is joined on the wings with Louis Ludik with Jacob Stockdale continuing at full-back.
Stuart McCloskey partners Luke Marshall in midfield while Billy Burns and John Cooney are retained as half-backs.
📋 Team News | Here is your Ulster team to take on @Harlequins in the return @ChampionsCup fixture against the English Premiership side at Twickenham Stoop on Friday evening ⬇️— Ulster Rugby (@UlsterRugby) December 12, 2019
Full details ➡️ https://t.co/zQkOIITeEI#SUFTUM pic.twitter.com/mO2CRKeTTs
Eric O’Sullivan, Rob Herring and Marty Moore will continue their front-row partnership with captain Iain Henderson joining Treadwell in the engine room.
Sean Reidy, Jordi Murphy and Marcell Coetzee all keep their places in the back row.
Ulster lead Pool 3 with three wins from three ahead of tomorrow's game at The Stoop.