Mathieu Bastareaud was sent off but Toulon fought back to claim their first Top 14 victory of the campaign.
Worcester Warriors were unable to complete a comeback from 18-0 down at Sale Sharks as they remain winless in the Premiership.
He has not fought since January 2015 but Sonny Bill Williams plans to return to the boxing ring in December, with Steve Hansen's blessing.
All Blacks duo Brodie Retallick and Ngani Laumape will both be sidelined due to injury.
Clermont won an early top-of-the-table clash with Stade Francais, while there were also Top 14 victories for Racing 92, Toulouse and Lyon.
Pro14 champions Leinster were defeated by last season's runners-up Scarlets in a tense clash on Saturday.
South Africa's Rassie Erasmus was frustrated with the way they allowed Australia to score tries while struggling on Saturday.
Danny Cipriani inspired Gloucester's comeback as a former Bath player denied the hosts victory at the Rec on Saturday.
Despite the late withdrawals of Adam Coleman and Israel Folau, Australia secured a hard-fought 23-18 victory over South Africa.
Argentina were beaten by New Zealand in Nelson but Agustin Creevy was encouraged by a competitive performance.
New Zealand's battling victory against Argentina has come at the cost of injuries to Ngani Laumape and Brodie Retallick.
Michael Cheika gained some much-needed respite as he watched his Australia side beat South Africa 23-18 in the Rugby Championship.
Though New Zealand ran out 46-24 winners over Argentina, the All Blacks' victory was far from a convincing one.
John Cooney kicked a last-gasp penalty for the second successive week as Ulster left it late to beat Pro14 rivals Edinburgh.
Dan Biggar kicked 17 points and Dylan Hartley came off the bench to score a try as Northampton Saints edged out Harlequins.
Flanker Brad Shields will start his first Premiership game on Saturday when Wasps host last season's beaten finalists Exeter Chiefs.