Leinster skipper Jamie Heaslip believed his side would still have enough to mount a comeback and beat Ulster in spite of being comprehensively out played for the first 55 minutes.
Ulster led 9-0 and butchered a number of scoring opportunities before Leinster woke up and replied with 13 unanswered points.
“I think we just weren’t being accurate , we felt quite comfortable in defence only to give a penalty away to give them a shot at goal or a kick down the line, when we got into good areas we turned it over in the first half,” said Heaslip.
“We just focused on what will we do with the next ball.
“I thought in spite of being a man down (Gordon D’Arcy sinbinning) we really came into the game in the last 10 minutes of the first half and started to get a bit of dominance.
“We came out in the second half and we held onto the ball, produced quick ball in spite of them having a lot of good guys at the ruck with Rory (Best), Chris (Henry) and Hendy (Iain Henderson), who is a pain in the backside at ruck time.
“At times they got in and turned it over and got turnovers other times we produced quick ball and put them under the pump.
“We got some crucial scores and grind it out and it was a serious squad effort with Ian Madigan getting the try and that last scrum we had all or forward subs on and the standards didn’t drop.
“We gave ourselves a mountain to climb and that is never easy against a side like Ulster.
“It’s a satisfied changing room but not a happy one.
“I thought we were good in defence today because of the work of the guys who weren’t involved today.
“The guys who ‘repped’ the moves that Ulster use. Ulster still caught us out once or twice but I think we showed some good determination and some good belief in that second half.”
Heaslip has won three Heineken Cups, an Amlin and a PRO12 championship with Leinster and he wants more silverware but knows Glasgow are the form side in the competition.
“I would have loved any of the other three, but what we do know I suppose.
“What you try and learn from losses (previous Glasgow games) and what we realise from them, is that it’s on the day.
“Form, past form, the players you’ve got, all that stuff, it doesn’t matter come game day.
“It’s all about executing really, to be honest; knowing your job and role, and executing, trying to have that control but then that manic aggression in those little actions and those little jobs that you got to do.
“From my past experience, if you talk about the knock-outs last year against Glasgow here I think, to be honest, we were quite lucky to beat them here last year.
“We know them so well over the last few years, we’ve had them in our group in Europe a couple of times as well.
“They’ve got some quality players and some absolutely outstanding finishers as well as guys up front who can really grind it out but that’s all I’ve got for you right now.”