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.