Throughout the history of European club rugby, Leinster have felt that they have been playing catch-up to Toulouse.
Leo Cullen lined up for the Blues against the Reds and Black during his playing career and, over the past seven years, has been a coach trying to out-fox the flamboyant Frenchmen.
For most of his career, Toulouse more than had Leinster's measure and doled out some big hammerings to the Irish province.
