Sparks always fly when Leinster and La Rochelle cross paths, and the great modern rivals produced another game for the ages as Leinster edged a 25-24 thriller which went down to the final kick of the game.
Harry Byrne produced the last minute heroics with his penalty to win the game with the clock in the red, a couple of minutes after Nolann Le Garrec's conversion of Ihaia West’s try appeared to have given La Rochelle a late win.
"It was special, definitely special," the Leinster out-half said after his game-winning moment.
"I guess you don't realise until after the kick has gone over, watching it eagerly, but yeah delighted it went over."
To add to the pressure of the moment, missed kicks from Byrne and Sam Prendergast had left Leinster trailing, and were contrasted by La Rochelle’s Le Garrec, who had kicked four out of four.
"I just said to Caelan [Doris], 'I want it'," he added.
"I wanted to take it, I'd taken the one before and hit it off the post, but I'd hit it well. So, I felt I wasn't going to miss that one."
When Leo Cullen reviews the game along with his coaching team, there will be concerns about how easily La Rochelle carved their way up the pitch, even if they were denied multiple tries by some committed scramble defence.
Equally, Leinster’s first half discipline – conceding 10 penalties and two yellow cards – will be a concern.
But the head coach was delighted with his side’s determination to get back into the game, twice.
"I thought the players dug in incredibly well, didn't they?," Cullen said.
"When we went behind, when it was 17-12 at that stage, we were hanging in there for a period.
"We probably just dug in there at different stages. We just stayed in the game, kept fighting and eventually took an opportunity.
"Fair play to Harry [Byrne], who stepped up and kicked the goal at the end. Again, I thought it was really good intent to play off some of that transition ball that we would have had, which leads to Robbie's try and to Josh's try. They're two great moments.
"It was far from a perfect performance. We started the game well. There's probably a bit of discipline that gets us in a bit of trouble, two yellow cards. It's very hard to impose your game when you're down to 14 men at this level, because you're up against a good team.
"Overall, to find a way at the end is probably the most pleasing bit, because we've had to do a little bit of that this year.
"The group are showing strong characteristics. It's not necessarily us imposing our game, but we're finding a way somehow, which is good."
The win puts Leinster 4-3 in front in their head to head with Ronan O'Gara's side, and the province's captain Caelan Doris believes it's a rivalry which is getting better and better.
"There's history there, isn't there?," he said.
"It's always a tightly contested game, and there's a few individual rivalries and then just what's come with it over the last number of years.
"So there's always an extra bit of excitement when we see them on the schedule and it's been a good week for us training-wise and some of that transferred onto the pitch."
Leinster finish their Pool 3 campaign away to Bayonne on Saturday afternoon (3.15pm Irish time).