CHRIS FOY'S WORLD OF RUGBY: At the end of a World Cup season, players will try to muster some energy for matches in the Southern Hemisphere at a time when they should be lying on a beach.

CHRIS FOY AT THE RICHOH ARENA: Northampton's lucky 13 stunned Wasps on Sunday as Dan Biggar and the man they call 'Big T' propelled the title-chasing Saints to victory.

CHRIS FOY'S WORLD OF RUGBY: Wayne Pivac has to pick him. How can he resist? Wales' head coach must decide in the next 48 hours if he believes 'if you're good enough, you're old enough.'

Wales have responded to a chronic shortage of available centres by launching a cross-border raid for another of England's uncapped junior world champions - Nick Tompkins.

The 18-year-old Gloucester winger, who has been in phenomenal form for his club scoring nine times in 10 matches this season, could make his debut against Italy the day after his 19th birthday.

Teen star Rees-Zammit can have an instant impact for Wales in the Six Nations according to new coach Wayne Pivac, who included the 18-year-old as one of five uncapped players in his squad.

If last week was hellish, Northampton were far more saintly in Lyon on Saturday - winning with a bonus-point to do all they could to make the Champions Cup quarter-finals.

EXCLUSIVE BY MATT HUGHES: The Six Nations powerbrokers are largely content with the existing deal, which is worth £90m a year between the BBC and ITV and is delivering record viewing figures.

The bookies fancy England after their run to the World Cup final but a new Six Nations era could spring a few surprises after some tough talking at the tournament launch on Wednesday morning.

SIR CLIVE WOODWARD: The 2020 Six Nations campaign will begin on Saturday, February 1 with a number of teams eyeing glory in this year's competition.

EXCLUSIVE INTERVIEW BY WILL KELLEHER: Leigh Halfpenny is a nervy interviewee at the best of times. After the 18 months he has endured, it is understandable that his self-assurance is low.

George North's move to centre for Wales was confirmed on Thursday afternoon as Wayne Pivac revealed his first Test side for the Italy Six Nations game.

With post-World Cup fallouts always bringing about change, there are plenty of new faces set to burst onto the scene. Here, Sportsmail runs through 10 uncapped stars to watch...

SIR CLIVE WOODWARD: The 2020 Six Nations campaign, which gets underway this weekend, promises to be a closely-fought affair with several teams eyeing the title.

WILL KELLEHER IN CARDIFF: Wales often overachieved, pulled performances from nowhere... galvanised by Gatland they showed heart and fire. Now they face life after him with Pivac.

WILL KELLEHER AT THE PRINCIPALITY STADIUM: PC Pivac's first job on the Welsh beat went without a hitch as the former copper's new side thrashed Italy easily in Cardiff.

ROUND-UP: The Six Nations kicked-off this weekend with a thrilling round of fixtures, as Ireland, France and Wales got off to the perfect start, as our team of the filled up with French players.

The uncapped pair have been training with the group in the last few weeks, but have now officially been drafted into the squad and will be available for selection.

The 24-year-old centre won his first cap against Italy last weekend off the bench, but did enough to prove he should start at No 13 against the Irish.

With England firing bombs at their Championship rivals each week, and Scotland responding with talk of 'hate', Wales coach Wayne Pivac is finding the pre-match mudslinging all a bit unnecessary.

Wales and their fly-half might have been the fancy Dans last week against Italy, but it will be back to basics for Biggar & Co in Dublin on Saturday.

Six Nations 2020 gets underway this weekend as teams look build on their Rugby World Cup campaigns last year. Sportsmail will provide you with fixtures, ko times, channel, results and odds.

Ireland host Wales in week two of Six Nations action at the Aviva Stadium in Dublin. Sportsmail's Ieuan Ivett will provide live coverage including score, tryscorers, substitutions, sin bins, injuries and more.

WILL KELLEHER AT AVIVA STADIUM: The storm stayed away but Ireland built a big green wall to barricade themselves against Welsh tides in Dublin, beating the Grand Slam champions.

As the second weekend of Six Nations action draws to a close, Sportsmail's Chris Foy digests the best of the offerings around the grounds...

EXCLUSIVE: The Six Nations are facing a battle to win support from clubs and players for an expanded tournament featuring South Africa.

There have been concerns over Biggar's concussion record, having taken two blows to the head during the World Cup against Australia and Fiji in September.

Leigh Halfpenny reckons Wales can roll back the clock and repeat their feats of 2013 this year by winning the Six Nations title, despite losing to Ireland in their last encounter.

The Welsh face an unbeaten French side in Cardiff on Saturday. Wayne Pivac's side come into the game on the back of a defeat in Dublin to the Irish - their first Six Nations loss since 2018.

EXCLUSIVE: When it comes to Shaun Edwards and rugby, emotion usually drives everything. But Saturday's Wales clash is strictly business. He does not do teary-eyed returns.

Wayne Pivac believes his wise Wales will overcome French flair on Saturday in the Six Nations having picked the most experienced line-up to grace the championship.

The last two Tests between Wales and France have been edge-of-the-seat thrillers. Both were won by wily Wales just when all looked lost:

If on Saturday the tide has turned against Wales, the French are flooding through in attack and causing chaos it will be the old men of the sea who guide those in red to calmer waters.

WILL KELLEHER AT THE PRINCIPALITY STADIUM: Wayne Pivac was left livid with two decisions costing Wales a win over France as they lost at home in the Six Nations for the first time in three years.

Shaun Edwards stood in the bowels of the Principality Stadium wearing the quiet contented look of a man who had just transformed a team that for years had an attitude problem.

As Sportsmail reported last month, full back Liam Williams has made a swift departure from under-fire European and English champions Saracens after their salary cap disaster.

Liam Williams, Josh Navidi and George North all set to be fit for selection for boss Wayne Pivac as Wales were handed a triple boost before taking on England at Twickenham on March 7.

EXCLUSIVE BY WILL KELLEHER: Welsh victories at Twickenham are rare but much-celebrated occasions. Sportsmail spoke to those involved in the most recent triumphs.

Wales' oracle has spoken and delivered doses of reality to his nation. Alun Wyn Jones does not talk much, but when he does it is worth listening to the totemic and decorated captain.

Wales will be hopeful Dan Biggar does not spark a backline injury crisis ahead of their Six Nations match against England after going off early for Northampton on Saturday against Saracens.

Sky are in line to secure a £300million agreement to screen the competition from 2021, leaving terrestrial channels BBC and ITV on the margins with potentially huge implications for the sport.

Wales will give Dan Biggar every chance to make the England Six Nations match this Saturday, with Sam Warburton saying they are 'confident' the fly-half will be fit.

Wales wing Hallam Amos will miss the rest of the 2020 Guinness Six Nations due to a knee injury. Amos sustained the injury during the Cardiff Blues' Guinness PRO14 victory over Benetton.

Manu Tuilagi is England's master of destruction on the pitch - and he is building an equally fierce reputation on the chess board.

Sam Warburton may have seen the Wales-England rivalry become friendlier in recent years but he called on his players to make themselves heroes at Twickenham on Saturday.

SIR CLIVE WOODWARD: There are some things much more important than sport, and when something like the coronavirus comes along rugby has to step into line.

Anthony Watson and Mark Wilson will make their first England appearances since the World Cup final in Saturday's Guinness Six Nations match against Wales at Twickenham, the RFU has announced.

Liam Williams will play his first Test for four months in the Six Nations against England, coming straight into the starting team as Wayne Pivac rings the changes for Wales.

SIR CLIVE WOODWARD: Mark Wilson and Anthony Watson will make their first England appearances since the World Cup final against Wales on Saturday.

The 21-13 defeat killed off English hopes of a Grand Slam, before Warren Gatland rubbed salt in the wounds by questioning their big-game ability.