The Springboks and Italy have played each other 14 times over the years with the Italians winning just once. That win came in 2016 when the Boks went down 20-18 in Florence.
Making his debut in the competition, Tau was a menace throughout the game as Club Brugge took a 2-0 lead in the first half before being pegged back by 11-time champions Real Madrid.
The tournament will run from 8 November, when the defending champions Jozi Stars take on Cape Town Blitz, until the grand final scheduled for 16 December 2019.
Citing experiments with testosterone, fat-burning amino acid injections and falsified medical documents, the American anti-doping authority USADA published a list of blemishes on the record of the highest-profile track and field coach in the world, Alberto Salazar.
Master marksman Robert Lewandowski also scored twice as Bayern responded to going behind early on in devastating fashion, running riot on a rain-lashed night in north London.
Mark Mayambela has been without a club since being released by Port Elizabeth-based side Chippa at the end of last season, despite being the captain of the side.
The Wanderers Stadium-based outfit won the tournament last year and will be bidding to defend their title when the 2019 edition gets underway in mid-November.