Jared Rosser scored two tries as the Dragons claimed a much-needed victory in Sunday's Pro14 action.
There were wins for Clermont Auvergne and La Rochelle in the Top 14 on Sunday.
Leicester Tigers almost took advantage of Saracens' ill-disciplined display, but fell short in a Premiership cracker at Welford Road.
France were stunned by Fiji in Paris, a defeat labelled as "shameful" by Mathieu Bastareaud.
Joe Schmidt will make an imminent announcement on his Ireland future, with the head coach expected to depart after the Rugby World Cup.
At the 10th time of asking Fiji have a win over France, who were stunned in Paris.
Warren Gatland confirmed Ellis Jenkins may have suffered damage to his anterior cruciate ligament late in Wales' win over South Africa.
The United States tested a second-string Ireland team early on, but Joe Schmidt's men ultimately cruised to victory at the Aviva Stadium.
Wales have won nine straight Tests for the first time this century, a sign of the strength in depth they possess says Alun Wyn...
Read more
There was a dramatic win for Racing 92 in Top 14, as Toulouse went top but only after a battle at Pau.
First-half tries from Tomas Francis and Liam Williams helped Wales beat South Africa 20-11 for their ninth successive victory.
Co-captain Owen Farrell hailed England's record win over Australia, but stressed the importance of looking forward, not back.
Scotland's work ethic and persistence pleased Gregor Townsend as they ended 2018 with victory over Argentina at Murrayfield.
Greig Laidlaw kicked three penalties before Sean Maitland's try as Scotland beat Argentina 14-9 at Murrayfield.
New Zealand responded to their defeat against Ireland by putting Italy to the sword in Rome, Jordie Barrett scoring four of 10 tries.
There were wins in the Premiership on Saturday for Exeter, Sale and Wasps, the latter triumphing despite a stunning Bristol fightback.