Power play: Glen Jackson charges through the Leeds defence during Saracens' emphatic win which has boosted confidence for Sunday's cup clash against Ospreys
"Winning such a big game by close to 30 points is a massive boost to our confidence, but it also gives Saracens plenty of motivation as well," said Gough. "They wanted to win that game just as much as we did so they will be hurt - they will be looking to really up their game and restore some pride."
Both teams have a key player missing through injury - Saracens will be without All Blacks lock Chris Jack and the Ospreys No9 Mike Phillips.
It's a critical club rugby weekend for the capital with London Irish hosting Perpignan in another quarter-final at Reading tomorrow. London Irish topped Pool One ahead of Perpignan, courtesy of two more bonus points, but Percy Montgomery believes his French side have hit top form at just the right time.
"I don't think the fact that we have already played each other twice this season will mean much on the day," said Montgomery, who kicked 12 of South Africa's points in their 15-6 World Cup Final win over England last year. "Because it's a quarter-final both teams will play as if it is an all-or-nothing final. We had a tough start to the season but we are starting to get some momentum going."