There were wins for Pau and Grenoble over Worcester Warriors and Agen respectively in the European Challenge Cup.
Saracens will be without Maro Itoje for "a number of weeks" after the lock picked up a knee problem on England duty.
RFU interim chief executive Nigel Melville does not believe scrapping relegation from the Premiership in the near future is a viable option.
SANZAAR CEO Andy Marinos says reports of Super Rugby shrinking to 14 teams are mere speculation.
The Crusaders' assistant coach Brad Mooar will take over from Wayne Pivac in the top job at the Scarlets from 2019-20.
Clermont Auvergne's advantage at the top of the Top 14 table was cut to three points following Toulouse's victory on Sunday.
A low-scoring draw at Bath was enough to lift Sale Sharks back off the bottom of the table, although they were frustrated after leading.
Montpellier's late rally did not deny Top 14 leaders Clermont Auvergne a 28-23 victory, while Guilhem Guirado scored a try in Toulon's win.
Alex Allan's dismissal did not prove costly as Glasgow Warriors beat the Scarlets, while Leinster scored 59 in a victory over the Dragons.
Defending champions Saracens have won each of their opening nine Premiership fixtures as they stayed perfect by beating Wasps 29-6.
After Argentina and Barbarians scored five tries apiece at Twickenham, Elton Jantjies' late drop-goal settled a thrilling contest.