Josh Adams will miss the games against England and Scotland as he requires surgery on the ankle he injured against France.
The Ospreys have turned to Toby Booth to take over as head coach when he finishes his assignment with Harlequins.
Wales full-back Liam Williams has joined the Scarlets ahead of schedule, while Rhys Webb joined Bath ahead of a move to Ospreys.
Former New Zealand prop Ben Franks says the end of this season will be the right time to end his illustrious career.
Ardie Savea says a move to either Sydney Roosters or Melbourne Storm are options that appeal to the All Blacks flanker.
More Italian sporting fixtures have been delayed by the coronavirus, with Zebre & Benetton Treviso seeing matches postponed.
Southern Kings and Benetton Treviso both fell short on Welsh soil as Scarlets and Cardiff Blues earned Pro14 wins.
Lyon and Toulouse were both winners in Sunday's Top 14 action, with Patricio Fernandez impressing for the former.
England were quick out of the blocks against Ireland and Owen Farrell insists the team are happy with how things are "in-house".
Ireland were beaten 24-12 at Twickenham, with head coach Andy Farrell left to concede that England were much the better side.