Ten internationals come back into the Ulster side for their play-off semi-final on Friday night, as head coach Neil Doak makes 11 changes to the starting team.
Only Louis Ludik, Ricky Lutton, Lewis Stevenson and Chris Henry are retained from the starting XV that lost to Glasgow last Saturday, with the province returning to Scotstoun to face the same opposition this weekend.
Tommy Bowe is one of ten internationals back in the Ulster starting XV.
Ludik continues at full-back, with Tommy Bowe and Craig Gilroy both returning to the wings, on the right and left respectively.
Jared Payne starts at outside centre and is paired with Darren Cave in midfield. Paddy Jackson is named at out-half and Ruan Pienaar returns at scrum-half.
Captain Rory Best returns to the front row, alongside props Lutton and Callum Black.
In the second row locks down beside Dan Tuohy are selected in the second row while Iain Henderson, Henry and Roger Wilson form an all-Ireland international back-row.
Glasgow Warriors v Ulster Rugby Guinness PRO12 Play Off, Scotstoun, Friday May 22 kick-off 7.45pm
Ulster team in full: L Ludik, T Bowe, J Payne, D Cave, C Gilroy, P Jackson, R Pienaar;(1-8): C Black, R Best (C), R Lutton, L Stevenson, D Tuohy, I Henderson, C Henry, R Wilson
Replacements: R Herring, A Warwick, B Ross, R Diack, S Reidy, P Marshall, S McCloskey, M Allen.