**Following their contrasting fortunes in the first bout of action since the Rugby Restart, Conference A’s top two Leinster and Ulster will lock horns in the first of this weekend’s Irish derbies at the Aviva Stadium, in the final round of the regular season.** \n\nBragging rights aside, both sides will be looking to lay down their title intentions with victory at Irish Rugby HQ, in what could be a rehearsal for the final with each team having already secured a place in the last four. \n\n**What’s at stake?** \n\nDouble-defending champions Leinster have looked somewhat unstoppable throughout the season - both domestically and in Europe - and they head into this match looking to complete the regular campaign unbeaten. \n\nLeo Cullen’s men are already in the midst of the best ever winning run in Guinness PRO14 history - having gone unbeaten since Ulster pipped them by one point in April 2019 - and cannot be caught by their Belfast-based opponents, who sit 21 points behind.