Leinster 33-15 Castres, RDS Arena
Led by a double try from Sean Cronin, Leinster stormed to a 33-15 victory over Castres in European Rugby Champions Cup 2016-17 clash at RDS Arena.
Ireland international Johnny Sexton missed the game for Leinster due to a hamstring injury.
The three-time champions was given the perfect start by Cronin, who scored the first two tries inside 25 minutes. Eight minutes later, Jack McGrath on his 100th appearance scored the third try in the game for the Dublin club taking a 19-3 lead.
Luke McGrath's sin-bin in the 39th minute for indiscretion allowed a penalty try for Castres as the first half ended with a 19-10 scoreline in favour of Leinster.
Isa Nacewa stepped up in the second half when Luke was in the sin-bin and his 47th minute converted try allowed Leinster to secure a bonus point following a penalty try awarded took Leo Cullen's men to 33 points.
Replacement Thibault Lassalle's sin-bin for Castres in the 60th minute added to their woes but despite being one man down, Anthony Jelonch scored a consolation try for the Top 14 club, who managed only 15 points.
The 18-point win ensured first place for Leinster in Pool 4 and now they will take on Montpellier in an away game at Altrad Stadium next week.