Robshaw aware of challenge
Chris Robshaw has outlined the challenge facing Harlequins if they are to progress to the knockout stages of the Heineken Cup.
The London club lost their opening two matches against Scarlets and Clermont but climbed to second in Pool Four with last weekend's 32-8 victory over Racing Metro.
The second leg of the double header against the Parisians is staged at Twickenham Stoop on Sunday, with victory offering a tantalising glimpse of the quarter-finals that seemed impossible only a game ago.
Quins' destiny remains in their own hands knowing that wins against Clermont, at home, and away at the Scarlets in the remaining group games in January would see them through.
Robshaw, however, believes big-spenders Racing will be fired up after their feeble effort at the Stade de la Beaujoire.
"If we're realistic we'll have to win all our remaining games if we want to go through. We're not allowed one more slip up," the club captain said.
"Racing come to us with the bit between their teeth - their president has called them out this week so I'm sure they'll have had some hard sessions.
"We haven't had too many great results at home recently, so it would be great to give the fans something to cheer about."
Harlequins have made just one change to the side that produced one of the club's finest results in Europe, replacing the injured Tom Casson at inside centre with Tim Molenaar.
Wales centre Jamie Roberts starts for Racing following three months out with an ankle injury, with his international team-mates Mike Phillips and Dan Lydiate also in the XV.
"They have team full of internationals, but we have good players as well and we've finally found a bit of form," Quins director of rugby Conor O'Shea said.
"The boys are playing with massive intensity, ambition and desire. We have to match and increase the desire we showed against them last weekend if we're to do the double over them.
"It would be lovely to go into the three Premiership games we have coming up knowing that it's all to play for and that our destiny is in our own hands.
"We just want to be in the mix at the business end of the season and we've given ourselves a huge challenge to do that."
Leicester are hoping to keep up the pressure on Ulster at the summit of Pool Five by completing the double over Montpellier at the Stade Yves-du-Manoir.
The Tigers have drafted wing Niall Morris and number eight Thomas Waldrom into their starting XV after defeating their Top 14 opponents 41-32 last weekend.
"I thought that was a good performance with some good tries and a great attitude throughout the team," director of rugby Richard Cockerill said.
"Montpellier also showed just dangerous they can be and there are certainly parts of the game we can improve on."
Gloucester's Tonga prop Sila Puafisi makes his debut against Edinburgh on Sunday with the Cherry and Whites looking to reel in Munster at the top of Pool Six.