Rory Best's Ulster return was spoiled as Leinster claimed an emphatic victory in a battle of Pro14 Group B heavyweights.

Captain Best made his comeback from an ankle injury that had kept him out since the start of December, but Ulster never looked like marking it with a victory as Leinster ran out a 38-7 winner.

Doubles from Jordan Larmour, and Fergus McFadden and tries from Barry Daly and Johnny Sexton ensured a bonus-point victory for second-placed Leinster, which is now 11 points ahead of third-placed Ulster.

Treviso shocked Cheetahs with a 27-21 win that marked the Italian side's sixth Pro14 win of the season. The South African side, which had Torsten van Jaarsveld and Shaun Venter sin-binned in the second half, suffering defeat as Epalahame Faiva's second try 12 minutes from time settled the contest.

Runaway Group A leader Glasgow Warriors easily beat Zebre 40-20, Matt Fagerson scoring the first of its six tries in the week his brother and team-mate Zander was ruled out for eight weeks.

Munster, second in Group A ahead of Cheetahs, responded to successive defeats in style by crushing Connacht 39-13, running in five tries including a Conor Murray double.

Elsewhere, Ospreys held off a late rally from Cardiff Blues in which it scored two converted tries in the last 10 minutes to record a narrow 29-28 victory over its Welsh rival.