Leinster's Luke McGrath admits Saracens' crucial try at the end of the first half was tough to take last Saturday.
The scrum-half himself kept the half alive when he decided to box kick deep into Sarries territory rather than kick to touch when he had possession, and Johnny Sexton has already backed the decision of his half-back partner, explaining that Leinster had tried to go for Sarries' jugular and lead by two scores at half-time.
But it didn't work out that way as the English giants drew level at the break and went on to triumph.
"Yeah, hindsight's a nice thing," said McGrath. "You'd probably just stop the game there and go in at half-time.
"But we probably thought we'd go up in the air, challenge and maybe get a penalty and go in 13-3, possibly.
"But to give away a penalty at that ruck was fairly crucial and then their score at half-time was tough to take; especially when we had a good bit of the momentum.
"I think Tadhg (Furlong) said at the start of the season that we have to attack the tournament and that's the mindset we had.
"We had to attack Saracens because if you sit back and let them attack you they'll score a lot of points.
"They showed their class out there. It's a fairly gutted changing-room at the moment, but it's important we have to regroup now because we've a massive game this week.
"We'll regroup on Monday afternoon, massive training on Tuesday and it's tough to forget about it, but we have to".
