Two weeks ago Saracens beat Harlequins at Wembley to go top of the Premiership.
Not only that, but the match attacted 83,889 spectators – a record crowd for a rugby union club fixture.
But Sarries coach Mark McCall has warned his players that their recent adventure in one of the world's most famous stadiums will not prepare them for what lies ahead at Ravenhill on Saturday evening.
Yes, there will be a much smaller crowd than at Wembley – but a far more intimidating one as Ulster home in on a place in the Heineken Cup semi-finals.
"I'm well aware – and the players are too – of the atmosphere there's going to be on Saturday," said the former Ulster coach.
"We played in front of a big crowd at Wembley, but this is going to be more intense and more hostile.
"There's a difference between a corporate audience and a hungry rugby public."
Ulsterman McCall insisted that his background is "neither here nor there" going into this crucial game.
"For me, from a personal angle, it isn't very important – it's irrelevant," he said.