A 15th Pro14 win of the season was enough for Leinster to make sure they will be at home in the semi-finals this term.
The Scarlets ran in six tries to mark Leigh Halfpenny's long-awaited return with a 43-21 thrashing of the Cheetahs in Pro14 on Sunday.
Luca Sperandio and Niccolo Cannone scored two tries apiece as Benetton Treviso stretched their unbeaten run to eight games.
Glasgow Warriors closed the gap on Munster at the top of Conference A, despite both recording wins in the latest round of Pro14 fixtures.
Wales full-back Leigh Halfpenny will play for the first time since November when the Scarlets take on the Cheetahs.
Nico Lee apologised for clearing the contents of his nose onto an opponent, which will see him banned until July 21.
The Irish Rugby Football Union (IRFU) has confirmed Leinster's Robbie Henshaw has extended his contract until June 2022.
With Elliot Daly departing for Saracens, Wasps will hope Matteo Minozzi proves to be a 'Super Smash' signing from Zebre.
Zebre put on a spirited showing but ultimately fell short against Pro14 heavyweights Leinster.
Centre Stuart McCloskey celebrated a century of matches for Ulster by dotting down for the only try against the Ospreys.
Wales were dealt a blow on Friday as Leigh Halfpenny's expected comeback for the Scarlets did not come to fruition.
Having lost Ryan Wilson for the rest of the Six Nations earlier this week, Scotland may also have to cope without Huw Jones.
Matthew Rees is eager to end his long career on a high note by securing a European Rugby Champions Cup spot for Cardiff Blues.
The Cheetahs stretched their winning run to four Pro14 games after withstanding a Southern Kings fightback in a pulsating derby clash.
Former Brumbies captain Sam Carter says the opportunity to join Ulster was "too good to turn down".
Southern Kings produced a stunning late fightback to claim only their second win of the season, halting Edinburgh's impressive run.