The Irish URC side have also confirmed their squad of 43 for the 2024/25 campaign, slightly down in size from 2023/24.
Ulster have bolstered their squad for the upcoming 2022/23 season with the signing of 23-year-old Irish-qualified scrum-half Michael McDonald on a one-year deal from Western Force, the Super Rugby Pacific side.
The five Australian Super Rugby Pacific franchises - the Brumbies, Reds, Rebels, Force and Waratahs - and the Fijian Drua have unveiled their squads for next season.
All four of the Western Force's Argentine recruits could make their debuts for the side against the Brumbies on Tuesday.
Dual international Karmichael Hunt has been promoted to the starting side for the NSW Waratahs' Super Rugby AU showdown with the Brumbies in Sydney on Saturday night.
Western Force coach Tim Sampson expects his team will be in the thick of the action at the pointy end of Super Rugby AU.
Super Rugby returns to Australia for the first time in four months this weekend, and the competition will welcome back the Western Force after a three-year hiatus.
Scotland's Alan Tait recalls how very different the World Cup was when launched in 1987: 'Your team room in the hotel had two fridges absolutely jam-packed with Steinlager... lads just piled into it.'
