Brian O'Driscoll believes a Leinster victory against Toulon would be up there among the all-time best results in the province's history.
The Off The Ball guest presenter joined us on the line to look ahead to the match.
"They won't go over and completely fear Toulon. They should play with a little bit of fear because when you're playing against a team of that calibre, you have to have that in your gut - that little bit of concern," he said.
"But at the same time, they should go over there and feel it is a little bit of a freebie, in that no one expects them to win. If they do, it quite possibly could be one of the greatest Leinster victories of all time."
Brian also looked back on last year's game against Toulon in the quarter-finals - a match in which he was involved in - characterising the French team as a side of individuals who also possess cohesion.
Brian also feels that the winning of the match will come via the try line rather than the boot.
"I don't think you're going to kick Toulon into defeat. You have to go out and think you've got to score more tries than them. With the way Leinster have been defending, you've got to feel as though they're likely to concede a couple. So if they conceded a couple, they're probably going to need to score two or three themselves," he said, adding that the first 20 minutes will be crucial for Leinster.
