The Brumbies have been dealt another blow, with confirmation that Henry Speight will leave the club to join the Reds at the end of 2019.
Australia veteran David Pocock, 31, has played his last game for the Brumbies as he eyes September's Rugby World Cup in Japan.
Will Genia's head injury was the only disappointment for the Rebels as they thrashed the rock-bottom Sunwolves in Tokyo on Saturday.
A 19-13 defeat to the Chiefs has ruined the Reds' hopes of reaching the Super Rugby finals, while the Brumbies beat the Bulls on Friday.
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 term.
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.