Leinster's bid to claim top seeding for the knockout stages of the Heineken Champions Cup was buttressed by an ultimately convincing win over Lyon in Dublin on Sunday afternoon.

Leinster were relieved to leave Lyon with their winning record intact in the European Champions Cup after a nervous end to their win in Stade Matmut de Gerland.

Munster 29 Grenoble 38: A thoroughly convincing 30-minute debut in the red jersey by Tyler Bleyendaal convinced onlookers at Thomond Park that Munster may have come up with a priceless nugget in the New Zealand number 10.

Connacht 19 Grenoble 52: Bernard Jackman returned to Connacht with his Grenoble troops and blitzed the westerners for eight tries at the Sportsground.