Scott Sio signed a deal with the Wallabies and Brumbies until at least the end of 2022.
The Blues kept their Super Rugby play-off hopes alive, while the Reds were beaten in a tense encounter with the Waratahs.
The Hurricanes, who were without Beauden Barrett, succumbed to their first ever loss to the Jaguares on Friday.
Rugby Australia decided to axe Israel Folau over anti-homosexual posts made on social media last month.
The Bulls have confirmed another star player is to depart, with Jesse Kriel signing with Canon Eagles in Japan.
Handre Pollard has agreed to join Top 14 heavyweights Montpellier and Morne Steyn will return to his homeland to replace the fly-half.
There will be three Du Preez brothers - including twins - and identical Curry twins at Sale Sharks next season.
Henry Speight scored twice as the Sunwolves were outclassed by the in-form Brumbies at GIO Stadium in Super Rugby.
The Lions' moved into a Super Rugby play-off berth with a narrow 29-28 success over the Waratahs in Johannesburg.
Scrum-half Brad Weber dotted down in either half as the Chiefs beat the Sharks 29-23 to record just their fourth Super Rugby win this...
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The Crusaders were led by Sevu Reece and Richie Mo'unga as they hammered the Bulls on Friday.
Two yellow cards proved costly as the Reds were beaten by the Rebels, while the Hurricanes picked off the Blues at Eden Park.
Adam Coleman will join Waisake Naholo, Sekope Kepu, Paddy Jackson and other new signing at London Irish in the Premiership next season.
London Irish continued their spending spree ahead of their return to the Premiership by sealing a move for Waisake Naholo.
Although there was no lasting damage from a chin injury, Ben Smith strained his hamstring on Saturday and will miss six to eight weeks.
Israel Folau committed a "high-level breach" of Rugby Australia's code of conduct, a panel has found.