FT Connacht 40-43 Racing 92: Irish side lose exciting encounter after second half fightback from Racing
Cian Prendergast scores twice in eight-try first half in Galway
FT Ospreys 18-20 Lyon: A missed conversion proves crucial as Ospreys tumble out of Europe
FT Edinburgh 34-28 Bulls: Edinburgh progress after outscoring Bulls by two penalties
Penalty - 13mins
This game has got it all and we are not even 15 minutes in!
Wame Naituvi is shown a red card for that horrible head-on-head challenge on Finn Treacy.
Referee Christope Ridley then checks for a penalty try and awards it to Connacht.
Huge amounts of talking points to come. Connacht in the driving seat now.
Connacht 14-5 Racing 92
TMO check here as Wame Naituvi goes high on Finn Treacy. Could this be a red?
Cian Prendergast (try) JJ Hanrahan (conv.) - 9mins
My goodness, it is a try fest!
After a thundering run from Bundee Aki into the 22, the ball is spun to the right where Mack Hansen almost makes the line but is hauled down just short.
However, the ball is popped right when Prendergast runs over from three metres.
Hanrahan makes no mistake from the tee.
Wame Naituvi - 7mins
The visitors have hit straight back.
After some Connacht pressure in their half, the French side break upfield.
Dan Lancaster plays a lovely chip out to the left and Naituvi gathers before running over the line to touch down.
Lancaster misses with the extras.
Bundee Aki (try) JJ Hanrahan (conv.)- 3mins
What a start for the westerners.
The TMO check shows that Aki clearly grounded the ball over the line.
Hanrahan strokes over the conversion.
Connacht 0-0 Racing 92
Another peanlty. A Racing player thrown across the lineout.
Connacht tap and go, Bundee Aki crashes over, but the referee wants to check...
Connacht 0-0 Racing 92
Early penalty for Connacht on the edge of the Racing 92.
JJ Hanrahan goes for the corner, ambitious play.
Connacht 0-0 Racing 92
Connacht get us underway in a sun-soaked Galway.
Connacht v Racing 92 (20:00 BST)
One of the most eagerly anticipated clashes tonight will be in the centres.
Connacht have gone for an explosive mix of youth and veteran, with 21-year-old Hugh Gavin being selected at no.13 alongside international Bundee Aki who turned 35 just last week.
The Parisians have went for Fijian guile in the form of deadly-duo Vinaya Habosi and Josua Tuisova as they aim for a place in final four.
Get ready for some big collisions and cheeky offloads when these two pairs collide.
Connacht v Racing 92 (20:00 BST)
It was a good weekend for Leinster in the Investec Champions Cup, but not for Munster.
Leo Cullen's side enjoyed a 52-0 home win against Glasgow Warriors on Friday to book their place in the semi-finals where they will face either Northampton.
Munster, however, were dumped out of the competition earlier today after a 47-29 defeat against Bordeaux in France on Saturday.
Ulster were not in action after being knocked out by Bordeaux in the previous round.
Image source, InphoConnacht v Racing 92 (20:00 BST)
It's a good night for rugby in Galway at the Dexcom Stadium.
Image source, InphoConnacht v Racing 92 (20:00 BST)
Connacht have made five changes for this European Challenge Cup quarter-final against Racing 92.
The province got the better of fellow United Rugby Championship side Cardiff in the last 16 last weekend without captain Cian Prendergast.
The blind-side flanker returns to the six jersey for the visit from the Top 14 outfit, with Josh Murphy moving back into the second row for the tie.
He will be partnered by former Bristol Bears lock Joe Joyce, who also missed the game against Cardiff.
Prop Denis Buckley starts at loose-head prop, while scrum-half Ben Murphy is fit again after finger surgery.
Shayne Bolton will miss out because of a quad strain with his place on the wing to be taken by Shane Jennings.
The visitors, who are 10th in the Top 14, have named former England captain Owen Farrell on the bench.
The ex-Saracens fly-half started against Perpignan last weekend but England Under-20s playmaker Dan Lancaster - the son of former England coach Stuart - has been handed the number 10 shirt.
Connacht: Hansen; Jennings, Gavin, Aki, Treacy; Hanrahan, B Murphy; Buckley, Heffernan, Bealham, J Murphy, Joyce, Prendergast (capt), Hurley-Langton, Jansen.
Replacements: Tierney-Martin, Dooley, Aungier, Dowling, Boyle, Devine, Ioane, Forde.
Racing 92: James; Naituvi, Habosi, Tuisova, Spring (capt); Lancaster, Le Garrec; Ben Arous, Escobar, Bamba, Palu, Rowlands, Baudonne, Kpoku, Joseph.
Replacements: Couly, Gogichashvili, Leota, R Taofifenua, Manyarara, D Taofifenua, Farrell, Chavancy.
Image source, InphoConnacht v Racing 92 (20:00 BST)
The Connacht players were all smiles as they arrived at the Dexcom Stadium this evening.
Let's take a look at the teams for tonight's game at Dexcom Stadium.
Image source, Inpho
Image source, InphoConnacht v Racing 92 (20:00 BST)
Now we go over to Galway where Connacht will host Racing 92 for a place in the semi-finals of the European Challenge Cup.
Connacht beat Cardiff 35-20 in the last round after claiming top seeding with three wins in the pool stages.
The French side, meanwhile, finished fifth in their Investec Champions Cup pool but boast plenty of talent.
If Connacht win they will have home advantage in the final four against Lyon.
Image source, Inpho
Image source, InphoFT: Ospreys 18-20 Lyon
It was not to be for Ospreys, who are the final Welsh team to bow out of European action this season.
Lyon are through to the final four, but who will they face next?
That question will be answered in the next few hours, as Connacht take on Racing 92.
Stay with us here on BBC Sport online for all the latest from the third quarter-final of this action-packed Saturday.
FT: Ospreys 18-20 Lyon
Jac Morgan has his hands on his head out on the field, he did all he could with a try to his name and several key turnovers, but it was not enough on the night.
FT: Ospreys 18-20 Lyon
Ospreys arguably had the better of proceedings, but a missed opportunity at the end of the first half and Dan Edwards' missed conversion meant they were always behind on the scoreboard.
Lyon march onto the semi-finals. They will face the winner of Connacht v Racing 92.
Ospreys 18-20 Lyon
Lyon are happy with the ball staying in this driving maul, the seconds are ticking away for Ospreys.
Ospreys 18-20 Lyon
It is that man again, Mickael Guillard, who has caused Ospreys all sorts of issues at the breakdown since coming on at half-time.
He wins yet another penalty, and Lyon opt to kick to the corner rather than extend their lead.
Into the final minute.
