John Cooney's kicking got Ulster up and running, while Connacht's Craig Ronaldson fell just short and Munster ran riot in Pro14.
Tim Swinson did damage just five minutes into Scotland's drubbing of Argentina last weekend and has gone under the knife in his homeland.
Johnny McNicholl and Steff Evans said they had been sticking to the bed sheets due to damage done at Scotstoun last week.
Glasgow Warriors failed to make the most of home advantage as Scarlets moved one win away from retaining their league title.
Rory Best scored two tries but Ulster's bid to overtake Edinburgh came to an end with a 24-24 draw away to Munster.
Nick Timoney's last-gasp try secured Ulster a crucial bonus-point victory over Glasgow Warriors on Saturday.
Scotland prop Jamie Bhatti has earned an extension to his Glasgow Warriors contract and is now tied to the club until May 2019.
Johan Goosen's return to rugby was spoiled by Munster, who engineered an impressive second-half turnaround at the Cheetahs in Pro14.
Scarlets picked up an impressive win over Glasgow Warriors to keep the pressure on Leinster, while Benetton, Cheetahs and Munster also won.
There were wins for Glasgow Warriors, Edinburgh and Cheetahs in Pro14 on Saturday, with Duncan Weir among the star performers.
Rob Harley's record 178th appearance for Glasgow Warriors was one to forget as they were beaten by Munster.