Scotland host Ireland in the final match of the round as two of the competition's unbeaten sides go head-to-head.
A quick look at the record books suggests it could be a tough day at the office for Scotland, who have lost 10 straight Tests against Ireland and won just once in their last 15 meetings.
Here is everything you need to know about Sunday's clash.

Key details:
When: Sunday, Feb. 9 at 3 p.m. UK
Where: Murrayfield, Edinburgh
How to watch: You can wach live on the BBC (UK). You can also follow along with live updates on ESPN.
Officials: Referee: James Doleman (NZ)
Assistant Referees: Ben O'Keeffe (NZ) & Pierre Brousset (Fra)
Television Match Official: Richard Kelly (NZ)

Lineups:
Scotland: Rory Sutherland, Dave Cherry, Zander Fagerson, Jonny Gray, Grant Gilchrist, Matt Fagerson, Rory Darge (co-captain), Jack Dempsey, Ben White, Finn Russell (co-captain), Duhan van der Merwe, Tom Jordan, Huw Jones, Darcy Graham, Blair Kinghorn.
Replacements: Ewan Ashman, Pierre Schoeman, Will Hurd, Sam Skinner, Gregor Brown, Jamie Ritchie, Jamie Dobie, Stafford McDowall.
Ireland: Hugo Keenan, Calvin Nash, Robbie Henshaw, Bundee Aki, James Lowe, Sam Prendergast, Jamison Gibson-Park, Caelan Doris (captain), Josh van der Flier, Peter O'Mahony, Tadhg Beirne, James Ryan, Finlay Bealham, Ronan Kelleher, Andrew Porter.
Replacements: Dan Sheehan, Cian Healy, Thomas Clarkson, Ryan Baird, Jack Conan, Conor Murray, Jack Crowley, Garry Ringrose.

Team news:
Scotland: Scotland coach Gregor Townsend has made three changes to his side. In the forwards, Jack Dempsey will start at No. 8 and Rory Sutherland will line up in the front-row.
In the backline, Tom Jordan gets the nod in the midfield ahead of Stafford McDowall, who drops to the bench.
Ireland: Flanker Peter O'Mahony returns to the starting XV and will earn his 111th cap for Ireland in Edinburgh. Centre Robbie Henshaw has been named to start in the midfield alongside Bundee Aki, with Garry Ringrose to come off the bench.
Meanwhile, Mack Hansen will miss the clash due to a hamstring issue and will be replaced by Calvin Nash.
Information from Reuters contributed to the team news of this report.
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