Defending champions Toulon claimed a first Champions Cup victory of the season by beating winless Leinster.


Steffon Armitage touched down from a catch and drive, with Eric Escande kicking the conversion and a penalty for Toulon's first-half points.


Johnny Sexton's three penalties kept the visitors in touch, but Escande added three of his own after the break.


Armitage crossed again at the death to all but end Leinster's prospects of progressing from Pool Five.


With only one losing bonus point from three games, Leinster need to win all three of their remaining matches to stand any chance of avoiding a first group-stage exit since the 2012-13 campaign.