Exeter Chiefs moved 11 points clear at the top of the Premiership after a dramatic victory over Bath at the Recreation Ground.
After successive losses, the Crusaders rediscovered that winning feeling with a 33-14 victory over the Bulls in Super Rugby on Friday.
Montpellier suffered their seventh Top 14 loss of the season, Toulouse getting the better of the leaders.
The Waratahs trailed 20-10 at half-time but came storming home in sweltering conditions to stun the Rebels in Sydney.
Saturday's 11-point victory marked the first time since 2013 that the Reds won three successive games in Super Rugby.
Victory over Stade Francais moved Racing 92 to within four points of Top 14 leaders Montpellier but Toulon slipped to defeat at Oyonnax.
While Ireland claimed the Grand Slam, Wales earned second spot in the Six Nations with a tense win against France.
Despite not playing their best rugby, Scotland coach Gregor Townsend was pleased at how his side battled back to beat Italy in Rome.
There were wins for the Lions and the Stormers on Saturday, as the Sunwolves and the Blues stayed anchored to the bottom of the...
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Ruthless Ireland claimed their third Grand Slam at Twickenham, Jacob Stockdale scoring a record-breaking try in a ruthless win over England.
Greig Laidlaw landed a 79th-minute penalty to secure Scotland a dramatic victory over Italy at the Stadio Olimpico.
The Crusaders only lost one match last season, but have already been beaten twice in 2018 after a derby loss to the Highlanders.
Edinburgh and Cardiff Blues both claimed wins to boost their respective playoff hopes in the Pro14 on Friday.
The Bulls led at half-time but the Chiefs fought back to claim a thrilling Super Rugby victory in Waikato.
Stade Francais' five-match losing run in the Top 14 came to an end on Sunday, while Toulouse missed the chance to take second.
Wales moved up to second in the Six Nations standings with a bonus-point victory over Italy, George North getting two tries.