The Sunwolves' final Super Rugby season has been halted, allowing Ben Te'o to depart for rugby league's Brisbane Broncos.
The Japan-based Sunwolves will not play in Australia's Super Rugby competition this year.
Discussions are ongoing over whether the Sunwolves can face Australian Super Rugby sides in an alternative competition.
The Reds came from behind to beat the Bulls 41-17 and there were Super Rugby wins for the Blues and the Crusaders.
Wollongong set the stage for back-to-back Super Rugby clashes on Friday, with the Brumbies and the Chiefs enjoying victories.
The Hurricanes proved far too strong for the Sunwolves in Super Rugby on Saturday, while the Sharks beat the Reds.
Australian Conference rivals the Brumbies and the Reds enjoyed big wins on Saturday, the leaders recovering from an outbreak of mumps.
The Brumbies looked to be heading for victory following a Folau Fainga'a hat-trick, but they were unable to hold off the Highlanders.
Super Rugby champions the Crusaders proved their class with an opening win, while the Rebels slumped to a poor loss in Japan.
Having missed out on England's Rugby World Cup squad, Ben Te'o has now joined Super Rugby franchise the Sunwolves.
Japanese visitors the Sunwolves were no match for the in-form Jaguares, who ran in eight tries to two in Buenos Aires on Friday.
The Lions are used to reaching the Super Rugby showpiece match but a 37-17 defeat to the Hurricanes has endangered their play-off hopes
The Crusaders were 20-0 up midway through the first half, but the Chiefs rolled up their sleeves to pull off an unlikely victory.
Henry Speight scored twice as the Sunwolves were outclassed by the in-form Brumbies at GIO Stadium in Super Rugby.
The Sharks were leading the Super Rugby champions when the final hooter sounded, but Mitch Hunt's late intervention denied them.
Sevu Reece and George Bridge scored twice as the Crusaders outclassed the Lions in Super Rugby on Friday.