Ahead of today's two big matches, here's what fans, players and even the match officials are saying.
At 2.45pm, Wales take on Scotland at the Millennium Stadium, with no silverware to play for, it's all about pride.
England have thrown down the gauntlet to Ireland after their 52-11 trouncing of Italy.
Then at 3pm, Swans take on the Baggies.
Michel Vorm has told the Post he is confident his team can avoid a relegation dog fight, but for many, today's game is a must win.
All the rugby latest:
Can't believe last round of 6 Nations is here. One more duty to do. Running touch for Italy v England match today in Rome.
— Nigel Owens (@Nigelrefowens) March 15, 2014
— Liz Perkins (@lizperkinspost) March 15, 2014
Wishing the @WelshRugbyUnion boys all the best today against Scotland! Gutted can't be a part of it but behind you all the way! Go well
— Leigh Halfpenny (@LeighHalfpenny1) March 15, 2014
And the football:
Michu returns to the #Swans bench, three months after his last appearance, but there is no Nathan Dyer because of a bruised heel
— Gareth Vincent (@Gareth_Vincent) March 15, 2014
Today not I can be with the team for the sanction. Sure that my partners will make a great match and get the 3 pts. Come on Swansea !!
— Chico Flores (@ChicoFlores12) March 15, 2014
It’s three changes for Garry Monk’s side from the 1-1 draw with @Official_CPFC. Amat, Canas and Lamah come in for Chico, Hernandez and Dyer.
— Swansea City FC (@SwansOfficial) March 15, 2014