With three rounds to go in the BKT United Rugby Championship, there are varying stakes for the Irish provinces.
Leinster have a home quarter-final locked in, and are on course to have the number one seed heading into the play-offs.
Munster, Ulster and Connacht are still jostling for position in that race for the top eight.
Munster's controversial loss to the Bulls last week has left the province looking over their shoulder, but could climb back up as high as fifth if they can get the better of play-off rivals Cardiff on Friday night.
Ulster fell into the bottom half with their defeat to Leinster last week, but will be expecting a big response on Saturday night when they welcome the Sharks to Belfast for their final home game of the season.
Despite winning just five of 15 games, Connacht know a win against the Lions in Johannesburg will bring them right back into the mix for the play-offs.
Here's everything you need to know this weekend.
TV
Watch Scarlets v Leinster (5.15pm) and Ulster v Sharks (7.35pm) on RTÉ2 and RTÉ Player on Saturday, with coverage beginning at 4.45pm.
Cardiff v Munster (Friday, 7.35pm) and Lions v Connacht are both live on TG4 and Premier Sports.
All games are shown live on URC.tv.
ONLINE
We'll have live score updates, reports and reaction from all games.
WEATHER
There's an unsettled weather forecast for Cardiff on Friday night, with temperatures around 13C but the possibility of scattered showers.
It will be nothing but blue skies in Johannesburg for Lions v Connacht on Saturday, and temperatures will be a manageable 20C.
It's forecast to be a very pleasant evening in Llanelli for Leinster's meeting with the Scarlets on Saturday, with a dry evening expected and temperatures around 14C.
And there should be similar conditions in Belfast on Saturday night, with the day's rain expected to clear before the 7.35pm kick-off.
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With Cardiff just ahead of Munster in the table, and their fellow play-off rivals Stormers and Benetton also meeting in Cape Town, Ian Costello's side know that there is a huge reward if they can get over the winning line at the Arm's Park on Friday.
Munster were 20-15 winners in a real arm-wrestle when these sides mat last season, and that's among 10 wins in a row against Welsh regions, dating back to September 2022, when they lost to Dragons, and this Cardiff side, in their opening games of the season.
That defeat in Cardiff in 2022 was Munster's only loss in their last eight visits to the Arm's Park, while the Welsh region have only win win against Irish opposition since, defeating Ulster in a thrilling comeback last October.
It's been a turbulent time for Cardiff, who were recently taken over by the WRU after going into administration, but Matt Sherratt's side have won two of their last three games in the URC, and have only been beaten once at home in this competition in their last five games.
Cardiff Rugby: Cam Winnett; Josh Adams, Harri Millard, Ben Thomas, Gabe Hamer-Webb; Callum Sheedy, Johan Mulder; Danny Southworth, Liam Belcher (capt), Keiron Assiratti; Josh McNally, Teddy Williams; James Botham, Thomas Young, Taulupe Faletau
Replacements: Evan Lloyd, Corey Domachowski, Rhys Litterick, Rory Thornton, Alun Lawrence, Ben Donnell, Aled Davies, Tinus de Beer
Munster: Mike Haley; Calvin Nash, Tom Farrell, Alex Nankivell, Thaakir Abrahams; Jack Crowley, Craig Casey; Michael Milne, Niall Scannell, John Ryan; Fineen Wycherley, Tadhg Beirne (capt); Jack O'Donoghue, Alex Kendellen, Gavin Coombes
Replacements: Diarmuid Barron, Mark Donnelly, Ronan Foxe, Jean Kleyn, Ruadhán Quinn, Paddy Patterson, Tony Butler, Seán O'Brien
Referee: Gianluca Gnecchi (FIR)
With just five wins from 15 games, Connacht really should be out of the play-off picture, but the province's incredible bonus-points haul means they're very much still in the mix.
Now under the stewardship of Cullie Tucker until the end of the season, Connacht have picked up 15 bonus-points this season, more than any other side.
Two of those came last week in their 34-29 defeat to the Stormers in Cape Town, where they had a potential game-winning try correctly ruled out, which could have changed their season.
Both sides come into the game in poor form; Connacht have lost three URC games in a row, with the Lions losing their last four.
The Lions hammered Connacht 38-14 when these sides met in Galway last season, but Connacht did come out on top 33-30 on their only previous visit to Ellis Park, which at the time was the first Irish win on South African soil in the modern URC.
Team news: Friday 12pm
Referee: Hollie Davidson (SRU)
A win against the Scarlets on Saturday will guarantee Leinster a home semi-final - should they get there - while it could also be enough to secure the number one seed with two games to spare, if Glasgow also fail to win against the Bulls on Friday.
Leo Cullen's side are in red-hot form at the moment, winning their last three games on a combined scoreline of 155-17.
The province's team selection will likely have one eye on next week's Champions Cup semi-final against Northampton Saints, but Leinster's second string squad have also been in great form this season, as they showed against the Sharks in Durban last month.
It's more than three years since Leinster lost to a Welsh region, and they haven't been beaten by the Scarlets since September 2018.
The Welsh side are on a two game winning run, defeating the Ospreys and Dragons in derbies, but they haven't beaten an Irish team since a 40-36 win at home to Connacht in March 2021.
Team news: Friday 12pm
Referee: Mike Adamson (SRU)
A topsy-turvy season for Ulster looks like it's going to go right down to the wire, and Richie Murphy's side know they'll face an uphill battle in their final two games if they fail to beat Sharks on Saturday night.
The South African side have also been incredibly inconsistent this season, but last week's dramatic win against Edinburgh at the Hive has seen them solidify their place in the top four, and they're now well on course to have hone advantage in the quarter-finals.
The two sides have met on three previous occasions with Ulster having the edge by two wins to one. Ulster won 24-21 on Sharks' only previous visit to Belfast in May 2022.
Ulster have won all 11 games they've played at home to South African teams, dating back to the old Pro14, while the Sharks have lost on each of their eight visits to Ireland.
Team news: Friday 12pm
Referee: Ben Whitehouse (WRU)
FULL LIST OF ROUND 14 FIXTURES, RESULTS AND STANDINGS
