England and Scotland are the only sides without a new head coach for the 2020 edition of the Six Nations.
The Six Nations returns this weekend, with defending champions Wales hosting Italy, England facing France and Ireland taking on Scotland.
Gregor Townsend has told Scotland to make themselves "a nightmare to deal with" when they tackle Ireland in Dublin in the Six Nations.
Johnny Sexton and Jordan Larmour have been joined by uncapped number eight Caelan Doris in Ireland's team to face Scotland.
The mercurial Finn Russell has been punished for a breach of team protocol just nine days before Scotland's first Six Nations game.
New Scotland captain Stuart Hogg proved if you don't ask, you don't get when he put himself forward to lead his country.
Johnny Sexton expects to lead Ireland against Scotland in Dublin and Jordan Larmour is expected to be in contention.
Gregor Townsend has turned to Stuart Hogg to lead Scotland in the Six Nations following Greig Laidlaw's international retirement.
Former Scotland and Newcastle Falcons lock Doddie Weir has quickly proven a source of inspiration for Rob Burrow following his diagnosis.
Fly-half Greig Laidlaw said it was an "incredibly hard" decision to retire from international rugby.
After making 55 appearances in a six-year international career, Tommy Seymour has retired from Scotland duty.
John Barclay, a veteran of 76 caps, will continue his rugby career but has opted to step away from Scotland duty.
Danny Wilson will replace Dave Rennie when the Glasgow Warriors head coach takes the Australia job.
South Africa can enjoy the status of world champions for the next four years and in 2020 will play matches with Scotland and Georgia.
Scottish Rugby will not challenge the punishment handed out by World Rugby last week.
Scottish Rugby will not challenge the punishment handed out by World Rugby last week.