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.
Harlequins won an entertaining encounter with Exeter Chiefs to hand them their first defeat of the Premiership season.
Three tries in eight minutes from Keith Earls helped Munster to an easy win over Edinburgh, while Ospreys nilled Zebre.
Andy Farrell will replace Joe Schmidt as Ireland head coach after the Rugby World Cup and Brian O'Driscoll has backed the call.
South Africa and London Irish tweeted their best wishes to Naka Drotske, who was shot during a robbery in Pretoria.