Scotland will once more be without full-back Stuart Hogg when they take on Wales in the Six Nations this weekend.
British and Irish Lions duo Maro Itoje and Jonathan Joseph, as well as former skipper Chris Robshaw, have been called up by England.
An injury to Shambeckler Vui and suspension for Tolu Latu has forced the Waratahs to bring in Tatafu Polota-Nau as short-term cover.
A 28-9 victory over Stade Francais saw Top 14 leaders Toulouse break a league record as they extended their unbeaten run to 12 games.
Ulster saw out the final 10 minutes with 13 men to inflict a four-try defeat on a beleaguered Dragons side.
Newcastle Falcons closed the gap on second-bottom Worcester Warriors to five points with a 17-6 victory in the Premiership on Sunday.
Bill Beaumont will chair a meeting in Dublin this month to discuss plans for a new annual 12-team global competition.
A late rally away to Jaguares was not enough for the Blues to avoid suffering a third successive Super Rugby defeat.
Toulouse's lead in the Top 14 table is down to a solitary point after Clermont Auvergne thrashed Grenoble. Lyon, meanwhile, lost at home.
Wales international Leigh Halfpenny featured in the Scarlets' 10-6 win over Munster, while Glasgow Warriors went top of Conference A.