Saracens will face Munster, Racing 92 and the Ospreys in next season's Champions Cup while Stuart Hogg returns to Glasgow.
Ireland have named a 44-man training squad ahead of the Rugby World Cup in Japan later this year.
A 78th-minute try from Marcell Coetzee helped Ulster book a PRO14 semi-final after beating rivals Connacht 21-13 at the Kingspan Stadium.
Saturday sees the PRO14 quarter-finals take place, as Munster host Benetton and Ulster welcome Connacht to the Kingspan.
Guinness PRO14 quarter-finals and semi-finals are confirmed with an Italian club in the knockout stage for the first time.
Ireland centre Bundee Aki has apologised after he "mistakenly liked" a homophobic social media post by Israel Folau.
Connacht are back in the Champions Cup after their win over Cardiff, while Glasgow beat Leinster to reclaim top spot in Conference A.
Recap Saturday's Guinness PRO14 action as Ospreys, Connacht and Edinburgh all pick up wins, while Leinster and Benetton drew.
8 dedicated Sky Sports channels
Watch all the action with a Sky Sports Pass
We've a host of top class rugby union action
Win in our free to enter competitions section
Goals, highlights, previews and more...
©2019 Sky UK