"Sales really picked up after our opening win over Calvisano last weekend and we are on course for another good gate at the Millennium Stadium," said Norster.
"We had 26,645 at the game against the Tigers and we hope to be there or beyond on Sunday. The Millennium Stadium is a great facility and the there is a great game in prospect.
"This is the third game we have taken to the international venue in recent years and the fans obviously enjoy the occasions. With a large contingent expected to make the journey from Gloucester, it promises to be another great Heineken Cup event."