Leinster post seven tries in opening day win over understrength Quins

Comfortable for Leinster though not quite the romp when these sides met last season

Leinster's Jack Conan in action  during the Investec Champions Cup match at the Aviva Stadium, Dublin. Photo: Niall Carson/PA Wire. 

Investec Champions Cup Pool 3: Leinster 45 Harlequins 28 

It wasn’t nearly as comprehensive as their 62-0 victory over the same opposition in the knockout rounds of last season’s competition, but Leinster nevertheless kick-started their Investec Champions Cup campaign with a bonus point triumph over an understrength Harlequins at the Aviva Stadium this evening.