Do you remember the Miracle Match? Well, that has no bearing on this game at all whatsoever. 

This will be about Johann van Graan's men building on last weekend's lucky-not-to-lose / unlucky-not-to-win draw in Exeter. That performance itself was a notch up from the improved outing against Leinster. 

So things are coming together nicely but a victory here is needed to rubber-stamp the progress. They could have done with a later kick-off time to generate some more atmosphere but they'll just have to get on with it.

Gloucester, meanwhile, beat Top 14 champs Castres, 19-14 with man of the moment Danny Cipriani kicking 14 points last weekend. 

Munster got fair warning of the damage a former player can do in the game against Racing last year when Donnacha Ryan had the inside track and used it to great effect. 

Gerbrant Grobler might be on the bench but Peter O'Mahony must be able to initiate plan B quickly if their normally solid lineout goes awry. 

Good news for Ulster. Donnacha Ryan isn't in the Racing 92 squad. Heralded as one of their best players last season, his absence will be felt. 

However, the Top 14's joint top try-scorer, one Simon Zebo, lines out at full-back, from where he has bagged six tries so far this season. 

Racing snatched a precious away win over Scarlets last week, while the visitors were full value for a 24-10 victory over Leicester. 

Last week Finn Russell (4) made more offloads than other player, while the out-half beat four defenders and made 77m with the ball in a man of the match showing.

For a team that also includes Leone Nakarawa, Dan McFarland's men must get their tackle technique correct to limit damage in that area. 

Ulster have had a funny start to the season and coming away from the U Arena with something would be a serious achievement. 

Now in the 24th year of this competition, these sides have carved up eight titles between them and sit proudly at the top of the roll of honour.

The two powerhouses haven't locked horns since 2011 and since then, their trajectories have gone in opposite directions.

Leinster have annexed the tournament three times in the intervening seven years, while the Top14 outfit have struggled to match previous glories. Indeed last year they failed to emerge from the pool stages of the Challenge Cup.

Both sides won their opening games in contrasting manners. Leo Cullen's side went to town on Wasps at the RDS with an exhibition of free-flowing rugby, while Freddie Burns' brain fart at the Rec ensured a winning start on the road for Ugo Mola's men.

The home side have been dealt a big blow with the loss of Jerome Kaino through injury, while a lot of their attacking hope will rest on the shoulders of the gifted, if unproven at this level, Romain N'tamack. 

The only change in personnel for the visitors is enforced with Rob Kearney ruled out with a tightness of the quad. Joe Tomane is drafted into the side with Jordan Larmour switching to the 15 jersey.

An exciting game is the expectation, but the smart money is on Leinster setting a club record 11th consecutive victory in the competition.

From All-Ireland finals to professional rugby. It has been a busy sporting career to date for former Limerick minor hurler Conor Fitzgerald, and having made his debut last week, he is given the nod from the start against Sale Sharks.

Fitzgerald started the 2014 minor final against Kilkenny, but it is an oval ball which is his focus now and head coach Andy Friend has shown faith in his Academy players in his short stint thus far at the Sportsground.

Connemara man Colm De Buitléar gets his first competitive start on the wing, while 21-year-old Paul Boyle makes his sixth appearance of the campaign. Academy prop Matthew Burke is poised for his debut off the bench.

The Sharks are struggling domestically, sitting just one place and two points above rock-bottom Newcastle, but the presence of Chris Ashton should provide a boost. The former England international will make his debut for the club in the round two fixture.

Sale will look to build on last week's credible 41-24 victory away to Perpignan, while Connacht had 12 points to spare over Bordeaux Begles at the Sportsground.

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