Racing Metro 92 won the first game of this double-header in Paris 19-9 but probably need a bonus point win to make sure they are still in the hunt for a place in the last eight of the competition.
The Top 14 side are only two points behind Munster and Sarries but they still have to play both those sides in the last two rounds of this Pool and they will want to give themselves every chance of a quarter-final place.
Edinburgh, who shocked everyone by becoming the first Scottish side to reach the semi-finals of the Heineken Cup last season, have endured a miserable campaign this time round. They are still waiting for their first try and have only managed three Greig Laidlaw penalty goals in four hours of trying.
The Scots have failed to record a single win and have yet to record a single point in their Pool. They only have pride to play when they play at Murrayfield on Friday night, where they beat four-time winners Toulouse last season.
• Olly Barkley has put boot to ball in open play on 40 occasions this season, the joint-most in the tournament alongside Danny Cipriani of Sale.
• Edinburgh are the only team in the Heineken Cup yet to reach double figures in points scored, they have just nine so far with all of these coming last weekend in Round 3.
• This is the fourth meeting between these sides in the last two seasons. Edinburgh won both games last season, including a 48-47 victory at Murrayfield in Round 2.
• Racing Metro have only won consecutive matches once before in this tournament, a feat they aim to match this weekend.