Ireland internationals, Rob Herring, Kieran Treadwell, Nick Timoney and Michael Lowry make a return to Ulster’s match-day squad for Saturday's meeting with Scarlets.
Rob Herring will take his place in the front row alongside Andy Warwick. Warwick earns his 157th Ulster cap and is joined by tighthead Marty Moore.
Joining captain Alan O’Connor, in the engine room is Kieran Treadwell. Brothers Matty Rea and Marcus Rea retain their starting spots in the back row.
This week they will play alongside the returning Nick Timoney, who impressed on the international stage, scoring a try against the USA on his Ireland debut last summer.
Ulster Rugby Academy graduate, Aaron Sexton, will make his first start for the province. Michael Lowry is in action again at full-back alongside Jacob Stockdale in the back three.
Stuart McCloskey and Luke Marshall, who combined so impressively for the first try last weekend, are retained in midfield.
Completing the starting XV are the familiar pairing of John Cooney and Billy Burns at scrum-half and fly-half respectively.
Back-row Sean Reffell, who joined during the summer is set to earn his first Ulster cap off the bench.
Declan Moore, Eric O’Sullivan, Sam Carter and returning Tom O’Toole complete the forward cover, while backs Dave Shanahan, Angus Curtis and Craig Gilroy are also included in the replacements.
Meanwhile Josh Macleod returns at flanker for Scarlets.
