Mighty Quins can record another historic victory
Dean Richards will name an unchanged side from the one that recorded the historic victory against Stade Francais last week.
Harlequins now host the French side back at their Twickenham home The Stoop and will be looking to build on their stunning result last week in France.
It seems this match will be desperately tight with Harlequins giving up one point on the handicap at 10/11 while Stade are 10/11 in receipt of the one point.
Harlequins sit proudly at the top of pool four three points ahead of Stade Francais and a win tomorrow would surely see them top the group and record a famous double over the strong French side.
The victorious Quins side from last week will remain totally unchanged. The excellent Tom Williams will be brimming with confidence after his try last week and public support from the Harlequins coaching staff and is 12/1 to score the first try.
England international Uge Monye is a constant danger and the Stade defence will have to be on full alert to stop the winger getting on the score sheet for the home side for which he is 10/1 to do so first.
The industrious Danny Care will be pulling the strings for the 'Quins and the regular provider is 20/1 to be the first try scorer.
Stade are going to be determined not to lose again and will be coming at Harlequins straight from the off.
The French side will ring the changes in a bid to reverse the result of last week with Argentina international Juan Martin Hernandez moving to full-back and Italian internationals the Bergamasco brothers - Mirco and Mauro coming into the side who are 12/1 and 20/1 respectively to score the first try.
This has got the potential to be one of the matches of the year and is likely to be desperately tight with big tackling and class oozing throughout. Harlequins pulled off a stunning result last week and there is no reason why they can't produce a similar performance and turnover the mighty Stade once again.
The Quins non-stop tackling was what won it for them in France and there is no doubt their defence will be working overtime stopping the French onslaught. But last week's performance was so impressive that a repeat of such a defensive masterclass should have the Twickenham side leaving victorious once again.
Harlequins -1 point - 10/11
Tom Williams to score first try - 12/1