Head to head match-ups do not come much bigger than a two-time Guinness Six Nations Player of the Championship going up against the man who succeeded him for that title.
At Scotstoun, Scotland’s Stuart Hogg will run out for the final time at Glasgow’s home ground as a Warrior before his summer move to Exeter Chiefs.
And his opposite number on the day for Ulster will be Jacob Stockdale, shifted from the wing for the Guinness PRO14 semi-final.
While they have taken different paths to the top, the pair are both lethal attacking threats, and could play a big part in the chances of their teams reaching the final in Glasgow the following week.
There will be plenty of emotion for Hogg, playing his final home game for the Warriors, and potentially his final Glasgow game full stop.
In nine years at the club, Hogg has gone from an exciting prospect to one of the best in the world in his position and is a danger every time he touches the ball.
The 2019 Guinness Six Nations was ultimately a frustrating one for Hogg, who impressed against Italy in the opening game before injury against Ireland cut short his campaign.
Now back fit and up to full speed, he will be itching to put on a show in front of the supporters who have backed him over the last decade.
Hogg, who was named Player of the Championship in 2016 and 2017, is a talismanic figure for Glasgow, also able to fill in at first receiver or play fly-half when required.
And after the frustrations of the 2019 Championship, Hogg will be eager to prove a point in 2020, after playing a leading role with Scotland in Japan in the autumn.
If Hogg starting at full-back came as no surprise, the decision to shift Stockdale into the No.15 jersey is a little more eye-opening.
Stockdale burst onto the scene as a winger in the 2018 Championship, scoring a record seven tries as Ireland claimed the Grand Slam.
His scoring record is impeccable for both club and country, but so far in his career Stockdale has done the majority of his damage on the wing.
Dan McFarland has decided to put him at full-back though to face Glasgow, a move that opens up some intriguing possibilities.
Rob Kearney has been the main man in the No.15 jersey for the last decade but he is now 33 years old.
His natural successor for club and country looked to be Jordan Larmour, who started the win over France in the Championship at 15.
However Larmour is also a capable of winger and can even play in the centres.
With his height and ability under the high ball, Stockdale could be an alternative to Larmour at the back. Either way, Andy Farrell will have plenty of options when he succeeds Joe Schmidt in charge of Ireland.