Harlequins gave themselves the best possible chance of landing a home Heineken Cup quarter-final by clinching a bonus-point victory over the Scarlets.

Dean Richards' men - already confirmed as Pool Four winners - ran in four tries from Chris Robshaw, George Robson, James Percival and Tom Williams at The Stoop. The Scarlets caused Quins a brief scare with quickfire tries in the second-half from Wales internationals Morgan Stoddart and Matthew Rees, while Gavin Evans earned the Scarlets a losing bonus point with a last-minute try under the posts.

But Quins had already secured themselves maximum points and will now wait anxiously in the hope of being confirmed as one of the top four seeds for the knockout stages.